SCIENTIFIC ABSTRACT TAVADZE, F.I. - TAVADZE, F.N.

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• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001755120013-6
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: July 16, 2001
• Sequence Number: 13
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

B/128/61/000/OOZ/006/009
A054/A133
AUTHORS: Essen, M.A.j Tavadze, F.I.
TITLIt On the solubility of magnesium in iron
PERIODICAL: Liteynoye proizvodstvo, no. 2, 1961, 31 - 34
TEXT: Tests were carried out to study the diffusion of magnesium in 'Lron
and to establish thq effect of the iron composition on the transformation of nod-
ular graphite. Magaesium was used as a reagent, the test iadles were made of CT.
30 (St. 30) and Y-10A (U-10A) steel, while-9 different kinds of iron were tested
containing silicium in the range of 0.72 - 5.25%. It was found that a carbon
content of 2.61 - 4.67%, an S-content of 0.015 - 0.225% and a manganese content
of 0.29 - 0.7% have no marked effect on the-transformation of nodular graphite,
whereas the effect of the structure of the metal base and that of the silicon -
content are considerable. To compare the behavior of the "oJmens, two of them*
were each time put in the test ladles in a rising order of their silicium content.
The structural analysis of the specimens shows that in specimens with a low sili-
cium content the iron is highly saturated with magnesium. Upon increasing the
silicium content from 0.72 t0,5.25% the amount of magnesium diffused decreased
Card 1/3

S/128/61/000/OOZ/006/009
On the solubility of magnesium in iron A054/A133
from 3 to 1% in the outer layers of the specimen. Moreover, it was found that
besides silicium, the concentration of magnesium in the peripheral layers only
depends on the carbon content of the iron. The tests (at a temperature of 1, 1000C
for about 15 h) established the relationship between the change in the shape of
graphite inclusions and the magnesium and silicium content of iron. Optimum re-
sults with regard t.4) the transformation of graphite inclusions into nodules were
obtained for a magm3sium content of 1.2 - 1.8% and a silicium content of 2 - 3.8%.
Tests carried out at various holding times showed that the time also has an ef-
fect on graphite trimsformation. Tests under high pressure, in order to intensi-
fy the diffusion process, produced in 5 hours' holding*time a composition of 2.22%
C, 1-27% Mg, 3-57% 31 with flake-shaped graphSte, whereas a holding time of 20 h
resulted in a composition of 0.93% C, 1.59% Mg and 2.46% Si with nodular graphite.
then the magnesium content of iron is raised above the optimum value, the graph-
ite inclusions do not transform. This must be put down to a deceleration of car-
bon diffusion, causj!d by a high magnesium content. Upon increasing the silicium
content, the magnesium concentration of the specimen decreases, starting at the
peripheral layers aid becoming more and more pronounced towards the centre. It
may, therefore, be -assumed, that the optimum ratio between magnesium and silicium
is attained, in the first place, in the core of the specimen, promoting the dif-
Card 2/3

S11281611000100210061009
On-the solubility of magnesium in iron Ao54/A133
fusion of carbon to such an extent that the carbon atoms can carry out the trans-
formation caused by magnesium. The optimum content of magnesium results in the
transformation of graphite inclusions into nodules. Upon increasing the silicium
content, three zones are formed in the specimen: an outer layer with excess mag-
nesium content, a second layer with optimum magnesium content and a third layer
where the magnesium content is below the optimum. Upon a further increase in the
silicium content, only two layers are formed: a peripheral layer with optimum
magnesium content with small and medium-size graphite nodules and an inner layer
with compact film and nodule graphite. A further increase in silicium content,
however, results in the rapid deterioration of the graphite shape. Part of the
tests were carried out in the Tula mekhanicheskly institut im. E.P. Rikman (Tula
Mechanical Institute im. E.P. Rikman). There are 9 figures and 9 Soviet-bloc
references.
Card 3/3

0 0 sk 0 0 e 0 0 915 Pt ?91 5 0
1 0 ;a If a B m All v III IV a #I Q 4J a a v
ali-Li; i V no 04~1. , , 6 1 ~ . . # 4 s-
- -0 -,
oil 6!1
AD(.
TA VO D7- E-, F N, LJ16 essa of syi&v&z~=
fwtiss of cam
2-J. 4
No. 1. -,2.--Tbt tactq of It;;
00 trestinest of ca" ir" with syutbmic 4&fl 10, s
00
b&* elec- furnace with addult- J cutlAde- mand hilth.
&?UOd44 MUM flap was Itimligalvd.
(10141 C 3A 1M. Si 1,76,44, 3614 m7v-p, S up IV Co. 1.
00 a P UP to 0.1. Cr up to 023, Ni 0.4-0A mod Cu tuis -09
00 1 (1-55%), Ured as antifriction materild. was tivated I,) see
10W and " at tit& temp. (of 3 Olin. with a but couts.
SIL)s 26-60, AU% 9-70. CrA traces, PA tp.44. Cut):Li.lp,
MrU 3M. MoO tram, FCO 3AP and C&Cs 2WLR?%.
0 -3 'rdAvk bauxite which was added to the basis fw the
zoo
Inudwitm of #6 14b-alundam mmlaS, -mmisintJ A44h i
51AIT.. 2*0~ 1W1111. FvM I&T7. Wh 2.~U. Cao I.Mi,
00 I'M 0X3. S 0.24. M#O traces. and alai"ufv 14 jut,
00 The trelltiamilt o( cast iron with The syntbetiv dligs iacl. -00
00 a 14"% the Productim of bigh-quality iron with spber"
inclusions of graphite. Graphite was distrit)"teti k1s
undoradYinvast iron wilichwasom trnt4.d with the syn.
thellic alav. The imain snam of the trealtd as wen &, ol
the allartated cut iron see
COUX95 of pearfite. peaslite of
the trMteld cam iron Is finer than that of the Out"*" age
cam iron. The Phrimicall-owk. prownin of c" fivo
truted fim with Ow carbide skg then with The blab.
&I-in& 2146 an coadtimbly better than thow tit cast nun
mor tr"Ied with them ShIp. W. R. Sirrin
I
s I too
w3w) Dd 0 a 9 1 W
doe'
U a AT No D it 14 XARIK Kau ItaKwo
I q a 0 0 of 0000 9
0 : !09 00 4; 0 0 *0 000 0 0 0 0
01010 o ~10v:::*l0 10 eie 0060 It 0
0
to o 0 e-400 090 000 00

TAVADZB, P.N.; TSKITISHVILI, MoDe.
- I
High alloy malleable mm~pnese cast iron [in Georgian with swoury
In Russian]. Trudy Inst. met. I gor. dels, AN Gm. SSR 2:101-122
,49. (MIRA 11:1)
(Iron-mmiganese alloys)

, - I ~, I?-I-
:,-. !1. - - - - -I
27120. TAVADIZE, F. 11. - YA 14. A. - 0 Pri rode allotrode allotrcl.) i ~hcslki k-h
prevrasherij. y z~,elezn. Triarly (Gruz. Poli Jekhn. i ri-t i r. ki rovr), Ko 18, 19,14C.
c . t I na ;- ru,-, .Yrtz.- Bi- fAI U-v: I'
SO: Letopis' ZhurnalInykh SLaLey, Vol. 362 10/49

AGLLDZI..R.I.; MORHOV, T.M.; TWOUSHVILI, L.I.; GVARAMM, N.V.; TAVADZI.
Fog., roftktor; INU, N.Y., tekhuicheskiy rodaktor.
r~~
[Alloys of nauganess with copper. nickel and zinc; a collection of
papers] Splav margantem, a nedliu, nikelem I tainksm; abornik robot,
Tbilisi. Izd-ve Akadenii 4ank Grusinskei 30, 1954, 121 p.
(Manganese alloys) (KLRA 925)

TAVADZI,V.N.; D13LUSHVILI,K.A.
Decomposition of wwanganes *-carbon alloys. Soob. AN Gruz. SSR
15 no-5::275-279 '54. (KEM 8: 6)
1. Akadeniya nauk Grusinskoy SSR. Institut metalla I gornogo
dela, Tbilisi. Predstarleno chlonom-korrespondentom Akademii
G.K. Gelevanishvilt.
(Hawness alloys)

TAVAM, Y.N.; DZHAPARIDU, P.N. I
I.
I
On the article of M.N. Posin and A.M. Ginstling *Philosophical
principles of the "classicalO theory of 'solid phase' processes.0
Zhur.prikl.kbim. 27 no.9:992-995 S 154. (KLRA 7:10)
(SolIdB) (Posin, M.I.) (Ginstling, P.N.)

2 7,4~ e~
-FA V AD
;r Mums of "Cu 'At

tw
A- M,
x t RON

"r - Iq /
/ Iq k~ - "L) ;- '=~~ - - /- -- / V
ussR/Corrosion - Protection From Corrosion.
Abs Jour Referat Zhur - KhimiYa, NO 9, 1957, 33151
Author Tavadze, F.N., Mandzhgaladze, S.N.
----------
Inst : Institute of Metals and Mining, Academy of Sciences
Georg:L&a SSR
Title : Determination of Irreversible Electrode Potentials of
Metals In Tbilisi Mineral Waters.
Orig Pub Tr. In--:a metalla i gorn. dela. AN GurzSSR, 1956, 7,
195-213
Abstract A determination was made of the irreversible electrode
potentials (IEP) of 14 metals in Tbilisi mineral waters
of 2 drilled wells the composition of which includes up
to 0-514 g/liter salts, N2, CH4, C02, H2S. On the ba-
sis of 'the nature of the potential versus time curves
the met4ils are subdivided in 3 groups:
Card 1/2
USSR/Corrosion - Protection From Corrosion. J.
Abs JOur Ref Zhur - Khimiya, No 9, 1957, 33151
1) Fe, 111u, brass, D(13 steel, Zn -- acquire more negative
potentials., 2) 1n8N9T and E1533 steel, crude iron grey
cast and sheet -- the potentials undergo almost no change
with tiJ'le; 3) Sn, Al, AMTs alloy -- acquire more positive
potentials. IEP depended on composition of mineral water
and the conditions of determination, in flowing water ,he
t
IEP are more neestive. Concerning the nature of JEP the
assumption is made that Fe, stainless steels, Fb, Sn, Al,
AMTs alloy, constituted, under the conditions of the ex-
Periment, complex electrodes of the film-pore type; Zn
-- crude iron -- electrodes of the type metal-adMixture
Of metal. The low value of the potential Of CU is attri-
buted to formation of electrode of second kind -_ CUICUS.
Data are presented concerning the stability to corrosion
of the iavestigatea metals, after re ining for 6 months
in the mtter of the above-stated wells.
Card 2/2

'15 11 7k,
USSR/corrosion - Protection From Corrosion. J.
Abs Jour : Referat Zhur - Khimiya, No 9, 1957, 33154
Author : Tavadze, F.N., Mandzhgaladze, S.N.
Inst : Institute oMtals and Mining, Academy of Sciences
Georgian SSR
Title : Study of Polarisation of Metals in Tbilisi Mineral Waters
Orig Pub : Tr. In-ta metalla i gorn. dela AN GruzSSR, 1956, 7, 215-227
Abstract : Curves were recorded of anodic and cathodic polarization
of 14 technical metals: S-3 steel, cast grey crude iron,
crude sheet iron, stainless steels of brands M3,
1Khl8N9T, E1533, M3 Cu, L68 brass, Al, of alloy AMTsl,
ZnTs2, N.M, FbC2, SnO2 in the mineral waters of 2 Trilivi
springs (,No 6 and No 7) having slightly different saline
compositLon (o.458-0-544 a/liter) and containine H2S, C02,
and Cl-ions. Temperature of the springs 2'(-420, pH value
Card 1/2

LMSR/Corrosion - Protection From Corrosion. J.
Abe Jour Ref Zhur - Khimiya, No 9, 1957, 33154
7.2-8.2. The investigated metals, with a few exceptions
showed slight anodic polarization. The cathodic process
occurs more readily in the mineral water of spring no 6,
having a somewhat hidier content of H2S, C02 and Cl-ions.
In the opinion of the authors the corrosion of most of
the investigated metals in the mineral waters of spring
No 6 and No 7 takes place under cathodic limitation by
the stage of 02 ionization.
Card 2/2

KAKUSHADZI, T.I.; TAVADZ&. Zj&..=qfee~or, redaktor; PATARAEA,L., redaktor
I'"
isdatel'i v
(Transitional matale and alloys] Perekhodnya metally i splavy.
Tbilisi, Izd-vo nouchno-matodicheekogo kabinets, 1957. 241 p.
(IGRA 10:9)
1. Chlen-korrespondent Akademii nauk Gruzinskoy SSR (for Tavadze)
(mistals) (Alloys)

KASUNZADE, Nadir Gadshi Yusuf ogly, dotsent.' -kand.tokhn.nauk; TAVADZE,.F.N.,
.prbf;, doktor takhn.nau-k,' -red.;
(Modification of the structure and properties of steel under the
influence of physical and chemical factors active in casting]
Izmene-nie titruktury i svoiatv stali pod v1iianiem fiziko-khimicheakikh
faktorov, tioistvuiushchikh pri razlivke. Baku, AzerbFAidzhftnskoe goo.
izd-vo nefl;.i nauchno-takhn.lit-ry, 1957. 363 P. (MIRA lltl)
I
1. Chlen-korrespondent AN Gruzitskoy SSR (for Tavadze).
(Steel--Metallography)

137- 58-2-4019
Translation from; Referativnyy zhurnal, Metallurgiya, 1958, Nr 2, p Z51 (USSR)
AUTHORS: Tavadze, F.N., Bayramashvili, I.A.
TITLE: The Effect of Low Pressures on the Graphitization of Gray Iron
(Vliyaniye nizkikh davleniy na grafitizatsiyu serogo chuguna)
PERIODICAL: Tr. Gruz. politekhn. in-t, 1957, Nr 3 (51), pp 97-105
ABSTRACT: The graphitization rate at low residual pressures exceeds that
in atmospheric air because of the elimination of the hydrogen.
After a certain exposure time the growth curve for air intersects
the growth curve for vacuum and goes on upward. This is
attributed to the fact that in the case of long exposures the oxid-
ation process starts to predominate over the graphitization
proce s a
A. S
1. Iron-GrapUtization-Pressure factors
Card 1/1

137-58-4-7737
Translation from: Referativnyy zhurnal, Met.Ilurgiya. 1958, Nr 4. p 198 (USSR)
AUTHORS: Tavadze, F. N. , Galinkin, B. Ye.
TITLE: Effect of Heat Treatment on the Corrosion Resistance of Iron
(Irliyaniye term;cheskoy obrabotki na korrozionnuyu stoykost chu-
guna)
PERIODICAL: Tr. Gruz. politekhn. in-t, 1957, Nr 3 (51), pp 12)-1217
ABSTRACT: The results of a study of the effect of heat treatment (HT) in
the 200-7000C temperature intervdl on the resistance of iron to
corrosion (CR) are presented. Corrosion tests were m.ide on griy
i.ron with lamellar graphite, high-strength iron with spheroidal
graphite, sheet irdns with flake graphite, without Cu and with 0.25
percent Cu. The tests were run in 5 percent HC1, HN031 NaOH,
and NaC1 solutions (with intermittent and constant immersion) and
under atmospheric conditions. It was found that under full immer-
sion in NaOH and NaC1 solutions, and under atmcspheric conditions,
the CR of iron is independent of HT. HT also fails to affect the CR
of iron containing Cu in all mediums. HT significantly -affects the
CR of iron only in solutions of acids and in NaCl (on alternating
Card 112 immersion and withdrawal). The CR of iron under these conditions

137-58-4-7737
Effect of Heat Treatment on the Corrosion Resistance of Iron
increases as the tempering tem erature or the isothermic treatment tempera-
ture of iron is increased to 4509, regardless of the form and nature of the graph-
ite inclusions. Further increase in temperature of HT in the 500-7000 inter-
val induces a reduction in the CR of iron. Irons of martensitic structure have
the highest CK
M. K.
1. Iron--Corrosion--Temperature factors
Card Z/z

137-58-5-10527
Translation from: Referativnyy zhurnal, Metallurgiya, 1958, Nr 5, p 235 (USSR)
AUTHORS: Tavadze, F.N., Doliashvili, K.A.
TITLE: Microstructure and Certain Properties of Alloys of the FeSi-
MnSi-C System (Mikrostruktura i nekotoryye svoystva splavov
sistemy FeSi-MnSi-C)
PERIODICAL: Soobshch. AN GruzSSSR, 1957, Vol 18, Nr 2, pp 211-216
(in Georgian)
ABSTRACT: To prepare alloys of the MnSi-FeSi system, their base com-
ponents - MnSi and FeSi - were smelted first, employing elec-
trolytic Mn, Armco Fe and metallic Si. This was done under a
layer of cryolite in a high-frequency furnace, using corundum
crucibles. The specimens for measurement of resistivity were
made by taking up liquid metal by suction into 3 or 4 mm cer-
amic tubes preheated to 800'C. The alloys were subjected to
s--epped annealing at 1000-5000 for 315 hours. Alloy3 of the
W*nSi-FeSi-C ternary system were obtained by smelting alloys
of the MnSi-FeSi system under a layer of nowdered graphite. It
was found that alloys of the MnSi-FeSi system form a contin-
uous series of solid solutions. The solubility of C in alloys of
Card 1/2 the MnSi-FeSi system is ,< 0.08%. The microstructures of
2"

A
137-58-5-10527
Microstructure and Certain (cont.
alloys of the U.nSi-FeSi-C system are analogous to the microstructures of
alloys of the M.nSi-Fe-Si system. The identical nature of the changes in the
resistivity and microhardness curves of solid solutions of carburized and
non-carburized alloys testifies to the fact that the C content of the solid -301-
ution is insignificant.
Z.Kh.
1. Alloy:.;-Properties 2. Alloys-Microstructure
Ca rd 2/2

TAVADZZ, 7.9.,_ctv. redi-, AaLADZI. R.I., red.; ARGJffADZX# Sh*R.. red.;
':TMAZ)ZE. N.V.. redo;- GVBLIWZUI, G.O., red,; 0=1M.W-ETAIII, B.I., red.;
DZEANELIMS, A.I., red.; DZOTMIMZ. G.S.. rod.; DOWSHIM.
S.V., rod.; MSKHOVELI, N.L. rod.; MIKELADZE I I S., rod.;
RUBINSHTIXYN, N.M.. red.; TVALORBLIDZE, A.A., r*d:.[d*c*ased],;
TSITSISETILI, G.V., rod.; SMINGELITA, P.G., red.; FBODOTITIV.
K.K.. rod. isd-va.; GUMA, A.?.. tokha. red.
[Natv.ral resoarces of the Georgian B.S.R.] Prircdzwo r0 surey
Gruzl.nakoi SSR. Moskya. Vol. 1.[Ketalliferous minerals] Metallichookle
poles:nyo iskopeemye. 1958. 230 p. (MIRA 11:11)
1. Aksdomiya usuk Grazinskoy 33R, Tiflis. Sovet po izucbeniyu
proismoditell nykh oil. 2. GbIen-korr*spondent AN Gruz. SSR (for Tavedze).
(Goorgia--Oro deposits)

AUTHOR _Tavadze, :'. N., Corresponding Member, :.cader,-y of Sciences,
G r u -zi-n ---Fa-y 7=51; R
T'M% - Application of Chemical and Metallographicr.-l ":ethrids? to the
investigation of archaeologic kilonumuntuu (I-rimeneniye khiml-
cheokikh i met4.1lograficheskikh metodov k izucheniyu
iirkheoloffichankilKh pamyatnikov) IY,)nufricture of alvtullurf~ic
,,rod'u,,ts in th(., Territory of Georgia in Antiqt;iLy (0 proiz-
vodsVia Lietallurgicheskikh izJel4,y nn territorii Gruzii "r
drevno2ti)
i','~;RIODICAL: T--vtnik Akademii nauk S'JMR, V1`58i TIr 9t PF- 53-56, (11!~'R)
IkBc,~TRACT Chemical and metallogra-ihical investigations of r..iany rietral
,orodudB were carried out in the Institut mettsllurf,,ii Akader-iii
nauk Gruzinskoy SSR (In2titute of lhletallurpy of the AS
Georgiaa ;SR); these metal products were found in archaeoloc,-i-
c;il excavations in the territory of Georgia . Thege investiga-
tions render po2nible to trace all stages of development of
metallurgic manufacturinF in the ancient epochs of' the
Card 1/4 hiotory of Georgia . The epoch of bronze inetali.iirgy in Georgia

i-pplication of ani ~'&tz-llc~~jh,:cai .'.'cthodc to the
arnif,~cturr~ o~' "~-tallurric ---.-ad-uct:~ in.
tol-I i
of Georgia in i.rtiquity
-a c
precejed by a period in which native copi~er w.- 711
F-.,hich in th--.- beginning the vinplest infitviments
In th,'~ early bronze ag mt.~n bec,ime aoquainlf;~i
o~ metal in hot und liquid conilition ~:nll
LionvIL:/ obtained copper containing ai-L-tenic, th,--t i~~
He began producing si;-.iple casting moulds from otone -nfj
the manufacture of wiro, beran in this :-f. ;, ~
It %"wl w-0111ced forgLil. wid ti,on by h-"?
:)ierced --tones ap, e.g. jac-per. At the o' t1w
a-ge, is produced with a content ol" ar'c:enic i;~'- ~O i-,
i7hinli trive.; evidence of an addition of mineval'.111
In the middle bronze age inGeorgis thi,
wnith's and jeweller's crafts vre developed ,,nd
fluch .3tainuing and nresciing of r-letal -re
first p;%rt of thi3 i)et,iod -int-imony-contain-ing, b:r-on---
tained and in the -p~trll tin bronze Or.
nro~iiict.,3 originatino? from, these tinen permit t,,
ZIL t11.9 otq~'e the craftsmen u!!r~d iiifferent
nent ztnd tools, Tt must :411so be ~~sc!umed that
~j rd 'men '.-"eY'e in this vork. fri this pei-ioI .0
- 2 /4 1 C~ - -

SOV13o-5("-9-8 '51
Application of Chemical and Metallogaphial Methods to the Investigation of
Archaeologic "onuments. Manufacture of Metallurgic Products in the Terri-
tory of GeorgIs in Antiquity
weight and =ensure must have been used. In the late bronze
age metal weapons were already generally required mass-articles,
which gives evidence of a high number of qualified workmen
engaged in production. The metal is melted near the ore-deposits
and the workmen are supplied with hardware. Tin bronze is
produced and for this purpose tin ore is used, which is part-
ly found iii Oeorgia and partly is imported. For the manu-
facture ofcavatin,-.- molding batches, wax patterns, sandstone-
and metal forms are used. In the late bronze age the use of
sulfide-ores becomes known. At the beginning of the late
bronze age melting of iron ores is come into use and iron is
obtained and processed. From the gradual development of metal-
working it can be seen that the ancient tribes of Georgia have
passed through all stages of their historical development and
that always the same tribes have been living here which con-
tinually raised their level of civilization which was of a
Card 3/4 peculiar nature. The abundance in natural resources and-the

Appliaationjof Chemical and Metallogmpldcal Methods
Archaeologio Monuments. '.!anufacture of 1.1etallurgic
tO,ry or G&wgia in Antiquity
SOV/30-58-9-0,'51
to the Investigation of
Producte in t?e Terri-
goographical situation of the coiintry viere yw3moting the
cultural uplift of the tribes. Georgia c6rried on trade with
the countries of the Near East. Classifying the monuments
of' the Georgian bronze age into certain periods requires a
precise investigation. Por this purpose similar investigationa
of the archaeological material and of the ore-deposits in
other republics in the Trans-Caucasus and the countries of
the 'Year :last ought to be carried out. In 1955 the Institute
together with the Gonudarstvennyy muzey Gruzii in. S. Dzhanaahia
(Georgidi Stnte Museumimeni S. Dzhanashia) has started re-
search work on the develoDment of iron working in ancient
Georgia..
Card 4/4

I MV/137-5975-10709
Translation fromt Referativrzvy zhurmal, Metallurgiya, 1959, Nr 5, P 179 (USSR)
AUTHORS: Tavadze, P.N., Tskitishvili, M.D.
TITLE: The Structure and Some Properties of Alloys of the Mn-jSi
System I
PERIODICAL. 'fr. In-ta metallurgii, AS GeorgianSSR, 1958, Vol 9, PP 71 75
(Georgian, Russian r6sum6)
AWMACT: Alloys of the Mn3Si-Fe3Si2 system consist mainly of solid
solutions. In an alloy with 70% Fe 3S'2, the presence of a
oher3ioal compound of Fel2SiliMn5 composition can be assumed
according to the decrease in hardness and electric resistance.
The alloys investigated become brittle after heating and cooling
off within a range of 2000 - 5000C.
L.V.
Card 1/1

SOV/137-59-5-10747
Translation from.~ Referativnyy zhurnal, Metallurgiya, 1959, Nr 5, p 183 (USSR)
AUTHIORS3 Tavadze, F.N., Takitishvili, M.D.
VA
TIM: The Structure and Some Properties of Alloys of tho
Et~31ZV;stem
PERIODICAL., Tr. In-ta metalluizii As aeorgianSSR, 1958, Vol 9, pp 77 81
(Georgian, Russian-rbsumb)
ABSTRACT: The solubility of C in alloys of the Ma Si Fe Si system de-
creases from 2.15% to 0 43% with inere;Rirg czLn
N of Fe3s'2-
The microstructure of triple alloys is similar to the micro-
stivature of alloys of the Mn3S' - Fe3Si system, but It con-
tairz more euteotic components wgich remal, in a coagulated
state also after homogenization, C increases electric resistance
and miorohardness of alloys. Introduction of C does not entail'
the formation of a new structural compongnt. Apparently C re-
places S1 in silicides and other phases,
Card 1/1 L.V,

TAVADZH, ?.11.j-,jkBICIMIISHVILI. M.A.
Solubility of carbon in manganese silicide. Trudy Inst.met.
AN Gruz.SSR 9:83-88 158. (MIRA 12:8)
(Manganese silicide) (Carbon) (Solutions, Solid)

SOV/1 37-59- 3-5352
Translation from: Referativnyy zhurnal. Metallurgiya, 1959, Nr 3, p 62 (USSR)
AUTHORS: Tavadze, F. N., Nikolayev, 0. B.
TITLE: On the Study of Stresses in Molds (K voprosu izucheniya naprya -
zheniy v izlozhnitsakh)
PERIODICAL: Tr. In-ta metalturgii. AN GruzSSR, 1958, Vol 9, pp 103- 105
ABSTRACT: In the open-hearth division of the Zakavkazskiy (Transcaucasian)
stres~ses
metalturgical plant an investigation was carried out on the
in solid-bottom molds for 6-ton ingots. The mechanical tensometer
method with an arrow indicator was used for studying the stresses. A.
brace 300 mm long with one end connected to the indicator was set on
the outer face of the mold 70 mm from the upper end. A second metal
brace with a set screw for linking to the indicator was placed in the
same horizontal plane with the first bTace, After the mold had been
filled with liquid steel a recording was made every 30 sec of the over-
all deformation (OD) which was determined by the sum of the values
for the mechanical-expansion deformation (MD) due to the internal
heating of the walls of the mold and the deformation resulting from the
Card 112 rise in temperature of the outer surface of the mold (TD), The TD

On the Study of Stresses in Molds
F,OV/1 37-59 - 3 -5 352
was established by means of an Fe-con5tantan thermocouple placed on the surface
of the mold between the braces underneath the indicator. The MD from the expan-
sion of the mold was determined by the difference OD- TD. The Values for MD due
to the expansion of the mold were plotted on a graph on the basis of the results ot
the OD and TD measurements. The stress formula is rendered more precise
through making allowances for the modulus - of,-elasticity reduction factor. It is
pointed out that in order to combat the formation of cracks in the molds the follow-
ing measures should be taken: a) Casting the molds of iron with high heat conduc-
tivity which would accelerate the decrease in 'the mddulus ~of'elasticity and
simultaneously increase the degree of plasticity of.the metal a'nd- (b) impeding D
by fitting cast-steel bands over the ends of the molds.
V. P
Card 2/2

ICHVRISHVILI, H.A.; TSUMVA, G.A,
TAVADZA, P.N.; IIIKOIATlCV. O.B.; UB
I
Increasing the durability of molds by means of cast steel
bands. Trudy Inst.met. AN Gruz.SSR 9:107-116 158.
(HIRL 12:8)
(Molding Orounding))

AUTHORS: Tavadze, F.N., Bayramashvili, I.A. SOV/128-58-11-11/24
TITLE: On the Nature of the X-Phase (0 prirode X-fazy)
PERIODICAL: Liteynoye proizvodstvo, 1958, Nr 11, pp 18-20 (USSR)
ABSTRACT: The X and X 1 phase in heat resistant grey cast iron were in-
vestigated. To obtain the large inclusions of the X-phase,
which is a result of oxidation processes, specimens of cast
iror. with varying silicon and manganese content, and spe-
cimens of wrought and magnesium iron were subjected to
20 hrs of isothermal treatment at 730 0 C. It was found that
the X-phase formation did not take place in cast iron with
a 6.25 % silicon content. In al I other cast iron specimens,
the X-phase was observed. The X -phase depends on the man-
ganese content, it is reduced with an increased silicon con-
tent and rises with a higher manganese content. It also de-
pends on the shape of graphites. There are 5 sets of micro-
photos, 1 table, 1 graph and 7 Soviet references.
1. Cast Iron--Phase studies 2. Cast iron--Heat treatment
3. Eilicon--Metallurgical effects 4. MeLnganese--Metallurgical effects
Card 1/1

TAVADZB, F.H.; FIRTSKHALA ILI, V.A.
Wfect of high carbon content in the austenite field of the system
iron~-chromiuz-men anese. Soob. AN Grus-SSR 21 no.6:727-733 D 158.
(KIRA 12:4)
1. AN GruzSSR, Institut metallurgii, Tbilisi. 2. Chlen-korregpon-
dent Aff,h%zSSR (for Tavadze).
(Iron alloys)

TAVADZZ. F.H.;MIMKHANOV, I.R.,kand. khim. nauk.
Use of chemical and metallographic wthods in the study of
ArcheologIcal monuments. Pt. l:Kanufacture of metallurgical articles
in Georgia in ancient times. Pt. 2:History of the development of
metal voec and mining in Izarbaijan. Vast. AN SSSR 28 no. 9:53-57
S 158. (MIRA 11:10)
1. Chlen-icorrespondent AN Gruzinskoy SSR (for Tavadze)
(Georgia--Ketall-argy)
(Izerbaijan--Alloyd--Spectra)
(Archeology)

I-TAVADZXj Fogel otvored.1 MDOTIYEV, N.M., red.Isd-va; GUSXVA. A.P.,
f6l~t'r'e d 0
[Natural resources of the Georgian S.S.R.] Prirodnyo resursy
Grusinskoi, M. Moskva. Vol.2* (Nonmetalliferous ores)
Rome talliche skis pole" iskopasWe. 1939, 379 P*
1. (MIRA 1297)
1, Akademiya nauk Grazinskoy SSR, Tiflis, Boyst po isuchaniyu
proixvoditollnykh sil. 2. Chlen-korrespondent AN Gr*jSSR
(for Tavadse).
(Georgia--Ore deposits)

sli 37116oytoop 11/0,35/1043
AOO6/AOO1
Translation from; Referativnyy zhurnal, Metallurgiya, 1960, No. 11, P. 251,
# 27246
AUTHORSt TAyaAze. P-N., Tskitishvili, M.D., Doliashvili, K.A., Mandzhgalad-
zelt S.N., Cvaliya, T.M., Nabichvrishvill, M.A.
TITLE: The Effect of Carbon and Silicon on Heat and Scale Resistance of
Alloya of the Iron-Chrome-Manganese System
PERIODICAL: Dokl. Nauchno-proizv. konferentsii mashinostroiteley i priboro-
stroiteley, Leningrad, Sudpromgiz., 1959, pp. 169 - 180
TM: The authors studied the joint effect of C and Si on heat and scale
resistance in cast and heat treated states of 2 series of alloys containing (in %)i
c iA - 3.92; Mn 1"-.19 - 15.61 Cr 12.90 - 15.4o si o 66 - 4.46; P 0.026 -1
0.147 (1); C 0.25 -~3.82; mn 14.14 - 15.38; cr 24-03 - i5-90; Si 0.21 - 6.82j
P o.o4 - o.25 (II); Heat treatment was conducted in vacuum quartz tubes by the
following two ways: 1) stabilizing at 700 and 7500C for 500 hra; 2) homogenizing
at 1,050 - 5000C (ste!pped) for 350 hrs. It was established that during stabiliza-
Card 1/2

q/ i N11601000140 11 /,b 35/0 4,3
A0061AOO1
The Effe c-~ of Carbon and Silicon on Heat and Scale Resistance of Alloys of the
Iron-Chrome-Manganese System
tion an increased C and Si content reduced heat resistance due to the formation
of non-stable phases, namely austenite and carbides. During homogenization the
alloys I show increased heat resistance, if their C content is 3.5 - 3.6%; the
alloys II have 2 maxima of heat resistance: at 1.8 - 2.3% C; 0.3 - 1.0% Si and
at o.4 - 1.0% C and 6.0 - 7.0% Si. The alloys 11 show higher heat resistance af-
ter homogenization. The alloys investigated show satisfactory resistance to oxi-
dation up to 7500C and are not subjected to "growth!' up to 9500C. C impairs
scale resistance of II and has no effect on I. 3i impairs scale resistance of II.
There are 9 references.
A.S.
Translator's note: This is the full translation of the original Russian abstract.
Card 2/2

5/137ttO/000/10 1 IA33/043
A006/1001
Translation from: Referativnyy zhurnal, Metallurgiya, 1960, No. 11, p. 250,
# 2724o
AUTHORS: Tavadze,_F.N., Essen, M.A.
TITLE: New Experiments in the Field of Obtaining Cast Iron With Spheroidal
Graphite
PERIODICAL: Dokl. Nauchno-proizv. konferentsii mashinostroitelay I priboro-
strol.teley, Leningrad, Sudpromgiz, 1959, PP. 180 - 184
TE(Tj The miethod of diffusion metallizing can be used to obtain a higher
Mg content in cast J.ron than by treatment of liquid metal with Mg. At an ex-
tended contact with the cast iron a diffusion transition of C from cast iron in-
to Mg takes place; thus conditions are created which entail the formation of
graphite inclusions of nodular shape. Impoverishment in C of the surface layer
causes the formation of a film around the specimen; the film consists of a
Card 1/2

SliN/601000110 11/*033/043
A006/AD01
New Experiments in the Field of Obtaining Cast Iran With Spheroidal Graphite
material which contains from 1.4 to 1.5% C, resembling graphitized steel. A high
content of Mg in thet peripherial layer proves the possibility of Mg dissolving
in graphite and in the metallic base of the cast iron. A.S. J,
Translator's note: This is the full translation of the original Russian abstract.
Card 2/2

S/137/SO/000/0 i i/t34/t43
A0061AOOI
Translation fromi Referativnyy zhurnal, Metallurgiya, 1960, No. 11, p_251,
# 27245
AUTHORS: Tavadze, P.N., Firtakhalayahvili, V.A.
TITLE: Investigating the Structure of Cast-Iron of the Chrome-Manganese
System
PERIODICAL: Dokl. Nauchno-proizv. konferentsii mashinostroiteley i priboro-
stroiteley, Leningrad, Sudpromgiz, 1959, pp. 184 - 194
TEXT: It was revealed that in alloys of the Fe_Cr_Mn system at a C con-
tent of 0.12%, C videns considerably the range of alloys with an auatenite base,
shifting it toward, the side of higher Or ooncentrations. At C 2.2 - 2.4% this
rarge includes alloys containing > 25% Cr, The austeniie of Cr-Mn-cast irons
with Mn 15 - 20%, Cr from 0 to 6 - 8%, decomposes partially into perlIte starting
from 675 - 700OC; austenite, however, does not undergo perlite decomposition.
In low-chromium alloys, in the range of austenite-base Cr-Mn-system of caat-irons,
a part of Mn is Ix)und in (P,Mn,Cr)3C carbides. In high chromium alloys, Cr is
Card 1/2

S/137/tO/000/t 1 1/034/t43
A006/AO01
Investigating the Structure of Cast-Tron of the Chrome-Manganese System
mainly bound in carbides and its ferrite-forming capacity vanishes. Si affects
the stability of the austenite of the Cr-Mn system. In the Cr-Mn system of cast
irons C is bound in carbides rich in Cr and Mn. Free C is present in the struc-
ture only in alloys with a low Cr and Mn content. There are 18 references.
A.S.
TranslatoA note: This is the full translation of the original Russian abstract.
Card 2/2

B/137/62/000/006/002/163
Aoo6/Aloi
AUTHORS: Tavadze, F. N., Katsitadze, Sh. S.
TITLE: On the flow mechanism of molten metals
PERIODICAL: Referativnyy zhurnal, Metallurgiya, no. 6, 1962, 8, abstract 6A48
("Tr. Gruz. politekhn. in-t", 1959, no. 3 (64), 77 - 8o)
TEXT: The velocity of metal flow (Al-alloy and steel) In quartz tubes of
d-ifferent diameters was determined by filming (24 frames per second). The length
of the mrtal flow was determined by instrumental and binocular microscopes on a
negative film. It, was established that the velocity of metal flow changes in
time constantly (a time-velooity curve is presented).
T. Kolesnikova
rAbstracter's note: Complete translation]
Card 1/1

18(7) SOV/128-59-16-6/25
AUTHOR: avadze F.N.,Doctor of Technical Sciences,
Essen, ., Engineer
TITLE: Transformation of Graphite Inclusions in Cast Iron
During its Saturation with Magnesium
PERIODICAL: Liteynoye Proizvodstvo, 1959, Nr 6, pp 15-18 (USSR)
ABSTRACT: Apart from the interest in a theoretical clarification
of the question on the formation of spheroidal gra-
phite, there is no uniform opinion among scientists
about this problem. During the last 10 years, Soviet
and foreign literature has published many scientific
treatments covering this problem,, Despite the diffe-
ren't theoretical concepts, all authors agree about the
methods necessary for the elaboration of this problem
on liquid cast iron. Exceptions are only the following
articles published by their Piitlior: (Publication of th,
Gruzinskiy Poly~~.bnice2 Institute Nr 6, 1955, Nr
'
6
f
e b
Ste
, Nr 3, 1958) and the artie
pin, P.J.
195
Card 1/3 (LiteynoyeProizvodstvo, Nr 11, 1958 . These publica-
5

SOV/128-501-6-6/25
Transformation of Graphite Inclusions in Cast Iron During its
Saturation vith Magnesium
tions contain data gained by experiments on the trans-
formation of graphite inclusions in chill type sulphu-
ric cast iron during its saturation with magnesium
until the formation of nodular graphite. In this ar-
ticle the methods for separation of graphite in chilled
cast iron improved by the authors is described. For
these experiments, the authors have put cylindrical
samples of uniform weight, but of different types of
cast iron with and without magnesium under presSure
after heating the samples from 400w up to 1.100 C. The
results showed that cast iron can be saturated with
magnesium either by pressure or by temperature,' but in
a different manner than that for molten ca!!t iron. "ag-
nesium in its larger percentage is found on the outside
of the shape, less in the inside. The test samples
were treated by an additional process to separate the
carbon share of the material. A chemical analysis did
Card 2/3 not mnav any carbon in the magnesium but an acetylene

SOV/128-59-6-6/25
Transformation of Graphite Inclusions in Cast Iron During its
Saturation vrith Magnesium
type smell indicated such possibility. The authors
maintain that the separation process of carbork plays an
important role in the formation of nodular type gra-
phite. The testa with aluminum demonstrated that it
bears only a weak influence on the formation of sphe-
roidal graphite. Several microphotos show the various
phases of the formation of spheroidal graphite. The
experiments made by the authors have not been verified
by.the experiments of P.J. Stepin despite the fact
that he used the same type of methods. The authors as-
sume that Stepin did not make his experiments under
sufficient pressure. Likewise his statement that the
graphite separation occurs always in spheroidal shape
could not be proven. There are 6 photographs, 1 table,
1 diagram and 7 Soviet references
Card 3/3

18(203) '0V1128-59-9-13125
AUTHOR: Tavadze F.N., Doctor of Technical Ociences and ~'-'ba-
trat&zaF-D-.rf-., Engineer
TITLE: Influence olo Lithium on Transformation of Gzaphite
Inclusions in Solidified irons
PERIODICAL: Jjiteynoye proizvodstvo, 1959, Ur 9, P 38 (USSR)
ABSTRACT: Cast iron containin,-, globular graphite inclusions
finds on many occasions application as a constructive
material. However, it has not been yet definitely
established, under what conditions the glebular gra-
phite structure is formed. A number of 3oviet and
foreign experts, among them Y.2. Bunin, K.I. Vash-
Chenko, 1T.G, Girshovich, D.P. Ivanov, B.S. Killman,
and I.I. Stepin have worked on this problam, but in
each case formation of globular graphite was resear-
ched in liquid, non-solidified irons. -in recent
years, research revealed the possibility of obtaining
cast irons with globular graphite inclusions by means
of an adequate treating of irons already solidified.
Tho authors of this article 1,ave cria.-ried out their
experiments on su].1dif ied iroris appli Ing the mut" od
Card 1/2 of diffusion provoked by iit-hlum. -T,o th.-L~; e-nd, 'Che

SOV/1,25-559- 9-13/25
Influence of Li-thium on Transfo--mation of (~raphi~,e 11riolusJ--mr, !n
Solidified irons
m-athods that were at one ti-me worked out by -V,7,!. Ta-
J.-
vadze,Ye.S.Xaxtoziy,a and '-,.A.. Essen Were partly
used. Uast iron te6t-pieces were placed together
-:tth(-,litl-iium in steel cylinders and heated lip to
~100 C5 thereafter. they -~-tayed 15 hours and gradual-
ly cooled down; it was established that during the
p:~oceoz of heatling gi!aphits.- inclusions, Independently
of -their jinitial -form, have talcen -the globalar strac-
U11:re. A specific featux-e of this process ie t-,r, up-
poarance of ferrite atructure in cast iron. '1'here
al7e 1 table, 2 photoe-raphs and 2 '3oviet references.
Card 2/2

TAVAWE, F.N.; BJ.YRAHASHVILI, I.A.; TSAGAIMYSHVILI, G.V.
Zff0ct Of manganese on the removal of sulfur from cast Iron
smalteet under vacuum. Soob. AN Grus. SSR 22 no.3.-329-336
Mr 155). (MIRA 12:8)
1.Gruzinskiy politekhnichookiy-inatitut im. S.M. Kirova. 2.Chlen-
korrespondent AN GruzSSR (for Tavadze)
(manganese) (cast iron-Metallurgy)

TAVADZEI,-,-Fjlt-*- XATRTADZI, Sh.S.
Iffect of calcium on shape changes of graphite in cast iron,
Lit. proinv. no.6:29-30 Je 060. (MIRA 13:8)
(Cast Iron--Metallograpby)

~_UVAD23, F. 11.
New tnx -of attachment for the I.I., Norulloy centrifugal nwhine
to clamp the specimeno and measure their deformation during heat-
resistance tests. Trudy Inst. met. AN Gruz. SSR 10:49-52 16o.
(MIRA 13:12)
Centrifuges-Attacbments)
at resistant allop-Testing)
M

TAVADZI, P.N.; )WMZHGALADZE, S*N*
Complex ad'fect of carbon aid silicon on the corrosion of Iron-
chromium-nanganese alloys. Trud7 Inst. met. AN Grus. SSR 10153-
68 l6o. (MIRA 13:12)
(Irozo-ohromiuvw-manganese alloys--Corrooion)

S/l2q/6o/ooo/olo/oo8/ooq
B193/z483
AUTHORSt Tavadz( F.N., Doctor of Technical Sciences, Professor
and KovsHYR-ov, Ye,K., Engineer
TITLEt Modernization o the Technology of Thermal Treatment of
Forging Dies 1~
PERIODICAL: Metall~VWd'eniye i termicheskaya obrabotka metallovs
196o, tro.lo, PP-54-37
TEXTo The authors; investigated various methods of heat-treating
of forging dies madie of Soviet developed Mo-free steels with the
following compositions: 5XHB (5KhNV)%4 0.5 - 0.6 C, 0.5 - 0.8 Mn.
0.15 - 0.35 Si, 0-5 - 0.8 Cr, 1. 8 Nil o. 6 1 w.
5 XHT (5KhNT)ji 0-52 - 0.60 C. 0.5 - 0.8 Mn. 0.15 0.35 Si,
1.0 - I.Ji-Cri 104 - 1.8 Nil 0-08 - 0-15 Ti.
5XHC(5KhNS) 0*5 - 0.6 C, 0.3 - o.6 mn, o.6 - o.9 si.
1.3 - Crq Oe8 - 1.2 Ni. 5XHC13(5Lh_NSVM 0-5 - 0.6 C
0.3 - o.6 mn, o.6 J(Si~ 1,3 - 1.6 Crt 0o8 - 1.2 Nis
o.4 - o.6 w. 5XH~Coi 5K N2SVF)%l 0.45 - 0-55 C, 0.5 - 0.8 Mn,
0.8 - 1.2 Si, 0.5 - 0. Cr, 2*.0 - 2-5 Nil 0.6 - 1 W, 0.15 -0-30 V.
Usually, to protect the working face of the die against oxidation
and decarburization, it is placed face-downwards in a tray filled
Card 1/4

S/129/60/000/010/008/009
E193/9483
Modernization of this Technology of Thermal Treatment of Forging Dies
with a mixture of carbon and sodium carbonate (5 wt.-%), after which
the whole is inserted in a furnace at 6000C. The die is then
heated gradually to the final (quenching) temperature, depending on
the composition of the steel, as shown in Table 2. The holding
time at the temperature is determined by the height of the die
(see Table 3). Thus, for instance, in the case of a die
250 mm high, it is held at 6oOQC for 35 min, brought up to the final
temperature (about 8500C) in 8 h 25 min, and held at the temperature
for I h 50 min; in the case of a die 700 mm high, the corresponding
times are 2 h 25 min, 23 h and 5 h. After removing from the
furnace, the die is allowed to cool in air to about 750 to 780*C
and is then quenched in oil maintained at a temperature not higher
than 70*C. The die is cooled in oil to about 200 to 3000C and is
then transferred tG a tempering furnace at a temperature not
exceeding 3500C. The final temperature reached during the
tempering treatment deperda on the material and dimensions of the
die (see Table 4), the duration of the tempering treatment
depending on the size of the die (Table 5). After tempering, the
dies are air- or oil-cooled. This is a lengthy procedure which,
Card 2/ 4

S/129/6o/ooo/olo/ooS/oo9
B193/9483
Modernization of the Technology of Thermal Treatment of Forging Dies
in the case of a large 700 mm high die, may take up to 60 h.
To reduce the heat treatment time, a modified method of tempering
was proposed in which both the working face and the tail end of the
die was tempered simultaneously. The modified method consisted in
placing the die (warking face upwards) on an electrically heated
plate, and covering it with a metal hood, thermally insulated by
an asbestos sheet lining; the hole in the top part of the hood
accommodated a thermocouple with its hot junction resting on the
working face of the die. When the temperature of the working
face reached 500 to 520*C, the temperature of the tail end of the
die was considerably higher. Although this method ensured that
the tail end of the die had the required mechanical properties, it
did not solve the problem of imparting the right combination of
mechanical properties and stability to the working face of the die.
The present authors have developed another time-saving method of
heat treatment which consists in the followingi the tail end of
the die, pre-heated for quenching, is enclosed in an airtight box
(see sketch on P-56). Ribs, welded on the inside walls of the box,
ensure that there is an air gap of 25 to 40 mm between the box walls
and.the die. Rods, passing through holes in the side walls of the
Card 3/4

S/l29/6o/OOO/0!0/oo8/oo9
C193/9483
Modernization of the Technology of Thermal Treatment of Forging Dies
die and fitting into a groove in the die, are provided to facilitate
hoisting. The die is then immersed in the oil bath and, since the
air contained in the box prevents oil from entering it, the tail end
of the die is not in direct contact with the cooling medium. Hence,
while the working face of ~Pe die is being qupched, its tail end is
subjected to a normalizing1land self-temperin;btreatment, so that no
subsequent heat treatment is necessary. As a result of adopting
this method, a 60 kif electric tempering furnace was freed for other
uses, the total heat-treating time was reduced by 30% and the
man-hours by 25%. There are 1 figures 5 tables and 4 Soviet U/
references.
ASSOCIATION% Institut metallurgii AN Gruzinskoy SSR
(Institute of Metallurgy, AS Georgian SSR)
Card 4/4

8/13T/6. 1/000/t'06/082/b92
A006/AfOl
AUTHORSt Tavadze,, P.N., Barbakadze, A.
TITLEt The'oomplex effect of manganese and antimony on antifriction proper-
ties of aluminum
PERIODICALt Referativnyy zhurnal, Metallurgiy~, no. 6, 1961, 24-25, abstract
61l72.("Tr. In-ta metallurgii:AN OruzSSW', 1960, v. io, 69-85, Oeors-
~an, Russian summary)
TEM The authors investigated the effect or Mn and Sb on the antifriction
properties of Al in the following alloyat Al*Mn (0.5-3.5%), AI-Sb (1-6%), Al-Mn-
Sb (0-5-3.5% Mn and 0.9-6.0% Sb). It was established that alloys containing 3-'
3.5 and 0.5-3.5% Mn at a constant amount of 1.0% 8b, meet the metallographical
requirements of antifrlotion proper-ties. An addition of -;;,' 3% Sb sharply reduces
the ductility of Al alloys. Addition of Sb up to 2% into Al alloys contAining
0.5-3.5% Mn, raises wear resistance of the alloys. At temperatures elbvated from
20 to 2000C, the hardness of the alloys is slightly reduced. Optimum antifriction
Card 1/2

25450 S/137/61/000 1/006/082P92 1
The complex effect .., Aoo6/Alol
properties are shown by alloys which contain in %j Mn 3-0, M 0.5 + Bb 1.0, and
Mn 3.5 +-Sb. 1.0. There are 13 references.
T. Rumyantseva
(Abstracter's notes Complete translation]

TAVADZEq F,~j, LASHKHIp T.A.j DASHNIANIv T.S.
Irreversible electrode potentials of different materials in
champagae. Soob. AN Gruz. SSR 25 no. 3:31.1-318 S 160.
(MM 14: 1)
1, Akademiya nauk Gruzinskoy SSR, Institut metallurglip Tbilis!6*
2, Chlon-korrespondent AN Gruzinskoy SSR (for Tavadze).
(Metals-4lectric properties)

TAVADZEp F.N.; IASMI# T.A.1 DASHNIAVIP T.Ss
I--
Changes in certain characteristics of champagne related to the
corroslim of different materials in it, Soob, An Gruse MR 25
no. 4:03-440 0 160& (KERA 14:1)
1, Akadomiya nauk Gruzinskoy SSR# Institut metanurgiis Tbilisi*
2. Chlen-korrespondent Akademii (for Tavadze)#
(Champagne (Wine)) (Corrosion and anticorrosives)

6790CJ
81020160113010610321059
AUTHOR8t Ageyev, N. V., Corresponding Member BO11/BO15
AS USSR# Tavadzet F. N., Kartvelishvili, Yu,-M.
TITLEs On the Production of Pure Chromium Chloridea~i
PERIODICILt Dctklady Akademii nauk SSSR, 1960, Vol 130, Nr 6, pp 1294 - 1297
(vSSR)
ABSTRACTs To obtain chromium in the highest possible degree of purity the
authors recommend the production of pure chromium chlorides
from electrolytic chromium by chloride distillation in a
chlorine current, and subsequent reduction with alkali metals
or alkaline-earth metals. In this paper they deal with e the ions
production of pure chromium chlorides. The following r act
are possible between metallic chromium and chlorine:
2C'r + 3C12 2CrCl 3 (1)1 Cr + C12 --pcrcl2 (2)1 2CrCl 3 +
+ Cr ;,3CrC12 (3). The authors calculated the free energies
and equilibrium constants of these reactions from standard
data. The results (temperature dependence of the free energies
and constants) are graphically shown on figures 1 and 2. The
Card 1/3 thermodynamic determination shows that in the temperature range

67900
On the Production of Pure Chromium Chlorides 8/020/60/130/06/032/059
BO11/BO15
investigated reaction (1) is most likely to occur whereas re-
action. (3) is moot unlikely. Metallic chromium was supplied by
the Institut prikladnoy khimii i elektrokhimii AN GruzSSR
(:Enstitute of Applied Chemistry and Electrochemistry of the
koademy of Sciences of the Gruzinskaya 55 ). FigurP 3 shows
the apparatus for the produotion of pure chrtmium d2arides.The prace-
dure may be divided into three sectionst (a) degasification of
chromium; (b) chlorination of chromium; (a) purification of the
chlorides produced by sublimation. These three stages are dis-
cussed in detail. Degasification at 400-4500 in a vacuum of
10-4mm. during 1-0-1-5 h was sufficient to elimPate the entire
hydrogen. Chlorination is effective at 595-605 . The chlorina-
tion time is to a considerable extent determined by the rate
(if chlorine addition and the amount of weighed chromium portion.
Chlorination took about 50 minutes at a chromium quantity of
20-30 g. At a slow chlorine passage CrC12 is produced. It is
necessary to purify the chromium chlorides under the exclusion
of air and steam in vacuum or in pure chlorine because the
c.hromium trichloride vtpors oxidize easily in the air. CrCl
Card 2/3 dissociates above 1300 , signs of dissociation are, however,

67900
On the Production of Pure Chromium Chlorides S/02Y60/130/06/032/059
B011 B015
noticeagle at 355 0 already. Sublimation is effective at 0
900-950 . Large crystals were obtained by maintaining 400-450
in the condensation vessel. The chromium chlorides produced in
the above way had a high degree of purity. Only in a few ex
poriments it was possible to prove traoes of aluminum and bis-
muth spectroscopically. The chromium used, however, containedt
Cu, Ni, Fe, Cd, Sn, Pb, Bi, P, Ti, Al, Si, Mn, Sb, 029 H2, and
N,,. The Cr content was 99.23065. There are 3 figures and
4"references, 3 of which are Soviet.
ASSOCIATIONt Institut metallurgii im. A. A. Baykova Akademii nauk SSSR
(!institute of Metallurgy imeni A. A. Baykov of the Academy of
Safences, USSR)
SUBMITTED: November 2, 1959
Card 3/3

CHIMLIDZE, S.,3.;-TAVADZE, F.N.p akadezrikj, otv. red; AGLADZE, R.I., red.;
ARCHVADZE, Sh.H.,, red.; VACIMADZE, N.D... red.; GVELISIAXI, G.G.,
red.; GUDZHEDZHIANI., B.I., red.1 DZHAHELIDZE, A.I., red:~J-
DZOTSM-IIDZE, G.S., red.; DUMISMZE, S.V.., red.; KETSKHOVUI , N.K.,
red.; MIKELADZE, I.S.., red.; RUBINSHTEYN, M.M., red.; TVALCOMDZE,
A.A.0 red.[deceased]; TSITSISHVILIO G.V.,, red.; SHENGELIYA, P.G..,
red.; FEDOTIYEV, K.M.j red.izd-va; DOROKBINA, I.N.j tokbn. red.
(Natural resources of the Gegrgian S.S.R.] Prirodnye rem=sy Gru-
zinskol SSR. Moskva# Izd-vo Akad.nauk SSSH. Vol.3. (Mineral water]
MineralJrve vody. 1961. 438 P. (MIRA .14:12)
1. Akae.emiya nauk Gruzinskoy SSRp Tiflis. Sovet po i=cheniyu pro-
imoditeltrykh sil. 2. Akademiya nauk Gruzinskoy SSR (for Tavadze).
(Georgia-Mineral water)

GUDZEMZHIAIII, B,,I.; CFICHUA, B.K.; PETROVSKIYt G.D.; KOVIETIANI, G.A.;
AMAYPAILLSHVILIJ, M.V.; AVALISHVILI, E.Ye. [deceased);
Y,IRZIASIPTILI., T.M.; SHCEMUMOV, D-L., glav.red.; ARCHVADZE, Sh.H.,,
red.; BOGOLYUBOVA, L.I., red.; VOTS, 1-.E.p red.;_TAVADZF-,_F-N-p
red.; YA:3LOKOV, V.S., red.; PEVZM, G.Ye.., red.izd-va; MAKUNIYe.V.,
tekbn. red.
(Coal atlas of the Caucasus] Atlas uglei Kavkaza,, By B.I.C~.,ftbedzhiani
i dr. Moskva) Izd-vo Akad.nauk SSSR, 1961. IU? pe (MIRA 14:12)
1. Akadmiya nauk Gruzinskoy SSR, Tiflis. Sovet, po izucheniyu proiz-
voditellnykh sil. (CaucaBus--Coal geology)

S/129/61/OoO/002/007/013
9073/E135
AUTHORS; Tavadze FN Corresponding Member, AS Georgian SSR,
Engineer,, and
ShinYayevj A.Ya.,) Candidate of Technical Sciences
TITLE: Solubility of Magnesium in Iron
PERIODICAi: t/etallovedenlye i termichnskaya, obrabotka metallov,
1961) No. 1, PP. 33-35
TEXT: The results are described of determining the solubility
of magnerl-lum In iron of high purity at elevated pressures. As
st,qr"lnr, materi3ls, electrolytic iron (99.87-J) and magnesium
(99.9%) were used. The iron was saturated.with magnesium in
cylindrical f---crt3Lners, of commercially purt, iron with 5 mrn thick
walls. The working -lameter of 2J mm.
. part wai 20 mm high with a d
Iron discS of 19.5 mm dia and 4 mm thIck were chargnd into the
container togethr-r with magnesiumq the voltime of which was
approximately ~7qual to the volume occupik'.,d by the Iron specimens.
The conta-iner uns, hermetically closed, with a thrinded and a
lid. Pollnwing that, the container was sealed In wicuum into
quartz ampr7azle~ and annealing was effected at 1120 OG l'or a duration
Card 1/1+

S/129/61/000/001/007/013
F-O 73 /E13 5
Solubility of Magnesium in Iron
which was sufficient for producing appreciable dlffuaion layers.
The duration of the annealing depended on the hermeticity of the
container, i.e. on the pressure. The pressure in the container was
produced by the considerable differences in the coefficients of
expansion of the magnesium and the iron. According to calculations,
pressures betweea 500 and 1500 atm, can be produced by this means.
For such pressures no appreciable colubility of magnesium in iron
was detected below 1000 OC. Above this temperature the solution
was due to the hermeticity of the system. No microstructural
changes in the s-irface layer of the specimens was observed after
annealing for 18 hours at 1120 0-C. However, chemtcil analysis by
deposition on the mercuTy cathode of a 0.4 mm thiolc iurface layer
showed a content of 0-17-0-19 wt.%, of magnesium. In specimens
annealed for 40 hours at the same temperature microstructure changes
in the surface layer were detected; a zone of columnar crystals,
orientated perpendicular to the surface of the ipecimen and having
an average thickness of 0.5 mm was observed. The magnesium content
in a 0.4 mm thick layer was about 0.6%. Outside this layer the
Card 214.

S/129/61/ooo/oOl/007/013
E073/Fa115
Solubility of Magnesium in Iron
structure was the ordinary polyhedric one. X-ray structural
investigatlone., by the powder method showed that the lattice period
tends to decrease on transition to layers that are saturated with
magnesium (P-858, compared to 2.861 ~ for the pure iron). Tne
X-ray diffraction patterns showed only pure iron lines. The self-
diffusion power of the Lron was studied. by on the
magnesium-containing layer the iiotopes Fe4epiodsltei~~ and subjecting
these zpe-_-irPen.-, as well as reference specimens of pure iron to
vacuijm annealinp, in quartz ampoules at temperatures controlled
within 1- 2 Ot% The self-d.iffusion was determined by electrolytic
removal -)-" L!yers and mer~sljrlng the radloactivity of each layer.
It Wa3 fcunl that m~Agn-~nium brings about an increase In the self-
diffu~ion of iron; ~t 16,&~ OC the diffusion In the magnesium-
containing -.ui~face 1--iyer wri, about 25 tlme::~ high as in pure
iron. -?nrticularLy noticeable is the Increase in the self-diffusion
coefficient for irc,,n that hts been subjectc.d to microstructure
change:7 a~ a result of m,ignosium dinsolution. Autoradiographic
Investi?,ations have shown that. volume diffusion of iron takes place
Card 3/4

S/129/6i/ooo/ool/oO7/0l3
E0?3/El35
iSolubility of 1,1agne;_~!Ium In iron
throughout the entire deptbs of the diffusion zone, which indicates
that the magnesium which is dissolved in the iron is uniformly
distributed throughout the grain body; the diffusion depth in
pure iron was 80-90 ji and over 200 Ii in the magnesium-containing
iron layers. This contributed to the.formation of a large number
of defects in the crystal lattice of the solvent metal during the
process of dissolution. indeed, in almost all cases the micro-
photographs of magnesium-containing iron show pores; these
coagulate, depending on the conditions of Interaction between the
magnesium and the iron (temperature, pressure). Vagnesium
dissolves in iron only at high pro:_;sures and temperatures (above
1_'POO OC). AcCording to Bulloy and Human. (Pef.2) dislocations can
become centres o' accumulation of dissolved admixtures. In the
zone surrounding the dislocations the migration of atoms is
considerably accelerated. Formation of vacancies should reduce the
lattice per-tod of the iron. This is in good agreement with data
obtained by X-ray investigations. There are I figure, 1 table
and 2 references: 1 Soviet and 1 English.
This is a condensed translation.
Card 4/)f

S11 2~8~906/003/007/008
A054 A127
AUTHOR: Tavadze, F. N.
TITLE: Some theoretical problems of the heat-resistance of iron
grades
PERIODICAL: Liteynoye proizvodstvo, no- 3, 1961, 31 - 34
TEXT-. Modern engines, machine parts etc. made of chromium-manganese
cast iron grades haire a high resistance to heat-creep, expansion and oxida-
tion. These properties of the alloy largely depend on the content of allor-
ing elements, relat47on and transformation of phases. Investigations were
carried out to establish the relation between the structure of chrome-man-
ganese iron and its heat resistance, as well as to ascertain the mechanism
of changes which take place in a multi-phase alloy oubjeoted to high temper-
atures. In the tests the iron, chrome and manganese content were changed
(Crt 0 - 26~oj Mn: 0 - 21%) while the carbon and silicium content remained
practically-constant. The alloys were produced in a high frequency furnace,
(corundum crucibles), with a smelting temperature of 1,35000. The actual
length of the specimens was 67 mm, their diameter 4 mm. The tests were
Card 1/8

2269q
S/128/61/000/003/007/008
Some theoretical problems of the... A054/AI27
partly carried out ivith stabilized alloys, stabilization took place by an-
nealing for 50 houra at the temperature at which the heat resistance was to
be tested. A part of the alloys was intended for studies in equilibrium
conditicn, which wa;3 obtained by 430 hours stepwise annealing, from 1,050'
to 5500C, followed *oy cooling in a furnace, Loading for both types of
samples (stabilized and in equilibrium) was identicalt 5 kg/eq mm for 50
hours, then for the same interval 10 and for another fifty hours 15 kg/sqmm.
The tests with stabLlized alloys proved that the increase in chrome content
raised the heat resistance of the alloy, whereas the increase in manganese
content from 0.4 to 5.0% had the opposite effect. A minimum heat resistance
was observed in alloys with a manganese content of 3 - 0- When manganese
content reached 11%, the heat resistance of the alloy suddenly increased,
most probably due to the phase-transformation that took place in the iron.
When comparing the behaviour of stabilized samples and those in equilibrium
condition, it was found that the stabilized samples with a chrome content
of over 10% and a manganese content of more than 12% had a greater heat re-
sistance than samples in equilibrium condition, containing the same amount
of elements. The relationship between heat resistance of the alloy and the
Card 2/8

8ome theoretical prolilems of the...
22627
3/128/61/000/003/007,/008
A054/AI27
pha3e-conditions are plotted in PiCu2:e 8, in 'which the deviation of the
specimen from the vertical axis (expressed in millimeters) was taken to-ir,
dicato I~eat resistance. The steep rise in chrome content'from 0 to'26~j rcl-
~,ulted in a 3-adden increase in heat resistance$ most probably due to a de-
crease in the intensity*of the diffusion processes. Stable carbiaes are
not easily-'soluble in-austenite. The dispersed carbides form some kind of,
reinforcement, localizinC plastic deformations. The changes in heat re-
sistance at 70000 bot h for stabilized sqmples and those in equilibrium con-
a lationship between
dition, are plottedlin Figures 4 - 7, in which the re'
chrome and manganese content and heat resistance can be followed closely.
There are 10 figureE, 1 table.and 27 references: 18 Soviet-bloc, 9 non-So-
viet-bloc.
Card 3/8

S/129/61/000/004/001/012
E073/E535
AUTHORSi -Tavadze, F~ N,, Corresponding Member of the AS,
G-e-orgTan SSR, vshikov. Ye,.K., Engineer
TITLE2 Automatic Signallinx of the Beginning of Martensitic
Tramiformation
PHRIODICALi Mexallovede-n1ye i. termz,:!hc-,skaya obrdhotka metallov,
1961,, No.4, pp-2-5
TEXT: The jxufthars developed an .1nalrument for automatic
signalling of th~e beg.Lnning of marten5itic trans format ion during.
quenching of com,.)on6rt5,. 'The de-vtcP k:cn,9.,-9ts of ,wo equal co.Lls
(Fig.2), the Primary 'Wiridill~r"i I and -` .-it which are series
connecteu t o An a ;F;A anti 4
3
are series connected to a gai~anomet(7:r via sio-lentunt re'ctifier--, 6
and 7. The ends of the secondary windxrtgs arc connected in such
a way that the induced currents should be epposite to each other
and if the coils do not contain Ter-romagnetic miasnom, the galvano-
meter will produce no deflection. One of the coil-5 is mounted in
the quenching water tank. If a ferromagUetIC comporient is placed
into it, the current iriten-qity induced Ln the secortriary winding
changes and the difference in the uuxz-~vnt produces a
Card 1/3

S/IZ9/61/000/004/00.1/012
Automatic Signalling of the E013/9535
deflectinn (if the g.al-vanometct, reading. Di-pt-odirxA :.~n the mass
the component , the sero~i tivi ty can !.-v. v-~!- in,; t lit! ~,,ur 1-1,13t
intensity in the pr-Itriary witi-dings b~v mittins ot ilc autotran8foi'vicy
pparatu!t s mo-unted is made of plasric,
5. The stand on vrhJ.ch the a
the bodies of the colls~ 650 mm high and ~jOO mm diameter, are made
of vinyl, The windings of the coilE.. whih tire.- ti, the water tank,
are onclostid in a liermetic. vin;). jactc, o--1 -~,wbuducd %n paraf-Fin
The primary windings conf--ji-5t of 600 to~ct..,~ )~ 0,,s~It i:im diameter %v~.re,
The seconda-ry windings consi 'st of 3000 ~uivi of' 0,.3 mm thick wire,
The zero position of the Salvancmetc-.r )..s e3tablashed by means o1
the rhenf;tats R 1 and R2. The coinpzivienlz to be quenched is held
b,, tonga )f nonmagneti.c eteel and subm#iyged int-cs the water inside
the coil, As soon is thr, temperature r;l' ihi-- beginning of marten-
site trans forma ti on is rt~a(.,hcd, i~e, a--, soot., as the f.Lr5t sections
of the ferromagneti.c phanE appear, the poi-nTer of the galvanometer
is deflected and a light and 6ound siLpjall 0 i3 switched on,
which indicates to the operator the exa-,T- tjtnF- when tht~ component
should be thrown int,r) ntl- 'The signalling., t~qvtipmvni: can signal
not only the beginnine bnt also an po-.11t.ion and the end
of the martensitir. it inn. of 'Lite apparatus
Card 2/3

S/129/61/000/004/001/012
Automatic Signall of the ..... EOWE05
Is that the percentage of rejects due to hardening cracks is
sharply reduced and a uniform hardness of the component is ensured
and also, that semi-skilled operators, can be employed.. The automatic
signalling equipment can also be fitted into,an oil: bath for
determining the time when forging dies"ahould be taken out of the
oil for tempering. Thereby, it is possible to prevent cracks'
forming as a result, of holding the dies too long in the cooling
oil. Furthermore, the apparatus can be used in,,mass production of
components of the same type made of high carbon steel. There are
2 figures and 3 references:' all Soviet.
ASSOCIATION: Institut metallurgii AN Gruzinskoy SSR
(institute of Metallurgy, AS,. Georgian SSIR)
Fig.2
4 1 M.
Vody.%noy bak water tank
220 220 V
Card V3
Oar. a. Cxema nrcm&uq&xora carmsax.

TAVADZE, F. N-; SUVARETME, T. N.; ABESADZE, TS. N.; DVALI, T. A.
Making iron in ancient Georgia by busbelling. Trudy Inet.
met. AN Grliz. SSR 11:95-108 061. (MIRA W-10)
(Georgia-Wirougbt iron)

T. V. D
D i,
coi T3
.2! n t 1).o r-1, a

TAVAIYZ!;,.--F.N.; IM31CIURISTVILI,
- , "-
Some I th a .ay-stem Fe - Cr-
.prcperties of anom of
'h-udy Inst. met. All Graz. 3SR 11:125-130 161. OEIP2 14:10)
(Tron-chro-Aum-nickel alloya)

A
;/Bos/61/011/00C/1)011006
AUTHORS: Ta.vadze, F. N. , Nabichvriahvili, &f. A.
TITLE: Tiie- refrictorinecs of alloys- of thic sys-em A-Cr-Nvi-si-c.
SOURCE: Akadcrni ~a nauk Gruzinskoy SSR. institut metallurgii. Trud-, v11,
L
TEX r: The paper reports the result5 of an experimental investigation ci ~,C
refractory p rope rtie ;of last irons of the Cr-N; wi!h crn,p-.-
6 a :- e
-7
i; t5 ~.u 5:e -npe razi-: r e) c Pa rac - e ---i ~-,c s we re inve s Liija ted, a:, r -1
microstructure of tha ZLIIOVS. Tests were made on allovs which had
ars cf hornogeaizing sz,apwise an-neal, and alioys which had undergone a short-term
stabilizinc, anneal at test temperature for 50 hrs. The fusion- tempe ratu re tc sts
were performad by t.-ie centrifugal method)of Prof. 1. 1. Kornilov at T - 700, 71 0, ancl
8000and loadings of 5, 10, and 15 kg/rnrm~. The deflections measured ar.-- grapned
versi,is 16 Ni content with the testing time as a parameter. It is concludec, tKat the
t mpera'4- ixei--easeu with arl ie in a d i can
W G- r a tent-
Card 1/2

The re--f -r,--.c- to- rjnes s off -a ' loya-nL-tha - lyr
The highes't fusion- tenvocrature is cxhdbited by e-lAst irons of which the rent Meta!
exhibits the charact!r of a -Y solid solution at the testing T. With increas,~-ig T the
t,
austenite recions c%pand toward the --maller IN," contents. Specimens wh;ch. ~iave
0
undurgone a ihort-ttrm anneal at the tesunf,, T exhibit a greater rufrzic-,-,-~
.j,11t. SUb e, ,C-t4 -C,
1 171,1 a,'c-s, a-, 6 Runsian-lan--oc S--~v:e' r,-"-e.-e:.C c S.

sYlV621000101410011020
A004/A101
AUTHORS: Tavadze, F. N., Tskitishvili, M. D.
TITLE: The effect of small niobium, tungsten and molybdenum additions on
the heat-resisting properties of chrome-manganese alloys
PERIODICAL: Referativnyy Z~urnal, Mashinostroyeniye, no. 14, 1962,,2D, abstract
14A119 ("Tr. In-ta metallurgii. AN GruzSSR", 1961, v- 11, 153 - 165,
Georgian; Russian summary)
TEXT: As a result of investigating the heat resistance at'700 and 7500C
with a load of 15 kg/mm2, microstructure, micro- and macro-hardness, electric
resistance and dilatometric analysis, corrosion resistance 'and scale resistance,
it was found that the best heat-resisting properties are shown by low-carbon
alloys (up to 1% C) with small Nb-additions (up to 0.4%) having an austenitic
structure with network-like distribution of the carbide phase. Nb-additions to
medium-carbon low-chromium (up to 15%) alloys do not ensure an improvement of
their heat resistance because of the coagulation of the carbide phase at high
temperatdres. Tangeiten improves the heat resistance of alloys only insignificanU'V.
Card 1/2

The effect of...
S/123/6Z/000/014/001/020
Aoo4/Aioi
Mo-additions cause a nonhomogeneity of the st-,ucture in the cast state and abrupt
changes in the structure under the effect of the heat-treatment and test tempera-
ture, as a result of which the heat resistance of the alloys is reduced, which
Is particularly the case with high-carbon alloys. Mo-modified high-chromium al-
loys with an austenitic-carbide structure possess a high corrosion resistance
in a 5% H2~04 solution. There are 9 references.
Abstracter's note: Complete translation]
Card 2/2

5/8081' 0`1 /0 11 /M)/301/006
AUTHORS: J4vzLdze,, F. N_ 2',.fandzh,--,a1a12'ze. S. N., TsMt~sh%`,i, V- D.,
Dash r--; T . S.
TITLE: The eflect of sma" additions of Nicibi~in-,, %folybden ln~'
Titaniurn, and Aluminum. on -h2 ---orro~,Joia ren-b,,In~e of
Mangarese allovs.
SOURCE- Akadendya nauk G-.uZins'Zoy SSIL. Tnstitut rnetallur-ii. Trudy, v 11,
19 61, 177- 190.
The paper describes an experimental investic-'ation of the e 11 ct o~-.tainvd
TEXT: 6 fl C
by :.noculatic,n and z.lloying with Nb, T1, 1,4o, W, and Al on the corrosion r( si'6tance
of alloys of the Fe-Gr-Mn-G-Si system. The alloys subjected to inoculatic n Bind
alloying wer,! the killowing: (a) Cast iron containing 25074 Cr, 15010 Mn, 1. F')
2. ZOj'O G; (b) cast iron.containing 15176 Cr, 15% Mn, 2.4% Si, 2. 2% C; (c) s1c,
la n L, 3 S - , a r. C. 9 '~ C . TCL, I r"!
D , a:, - c I W k-i C
NaCi. The re.-~ults of the corrosion tests are shown in the form oi table s.c. graphs.
The (tranlis show tha lo addition alon- the x---Y~s and either the corrosion raic i~ a
NaC.. solution or thu amount of H emitted by the specimen in the ac4d alonl-
Card. 1/2

The effect of small additions of Niobium .... S/806/61/011/000,tOO4/006
The alloys tesi~ed had been heat-treazed as fo-Ilows: The steel by a lo-vV-7 annt-al a,
700' and 750OC;, th,! cast iron with a high-T 5tepwise anneal at T frorn 1.3 50 -0
3000C (sic 1,. It wi.s found tnat Nb, 7~, and Improved the corrotiion rezi~znct:
~;z--Mn ani ca5t irc)Til~. 'Fh, -.n*.:-~ oi
C r
irrpaij-s the corrosion Of C;f-.Iif. Ca~,L lrOrl~ lf-i a :J--
of 1-~,SD_ The fin(Angs of the r~sultedl Jn the Df a
- -Z n 1, - C
,~vhich s completei- resistant to a 5~rZ~ soluti(---~ of H-,SO_. (comDn~iition- C r,
S 1, c. v-
(Ij ~us3ian-lanaruaae reler,-.ces anci a kussian trans-'.ai,~,r~
Y.N.Speiier:s :-Corrosion, cause anc. preveizu'l, d eu., New Yure"
-Card 2/2
FORMS=
N
Xr

TAVADZE, F.N.,, Ekademik,, otv. red.; PEVZNER, G.Ye., red. izd-va;
'11~11W-Aq G.L. tekbn. red,
(Natural resources of the Georgian S.S.R.]Prirodnye resursy
Gruzimkoi SSR. Moskva,, Izd-vo Akad. nauk SSSR. Moskva,
Izd-vo Akad, nauk SSSR. V01.4.[Water power reaourceo]Gidro-
energeticheskie resursy. 1962. 307 p. (MIRA 151l1)
1, Akad-emiya nauk Gruzinskoy SSR, Tiflis. Sovet po izucheniyu
proizvoditeltrykh oil. 2. Akademiya nauk Gruzinskoy SSR (for
Tavadze).
(Georgia-water power)

TAVADZEP-11.&J, MANDZHGALADZE.. S.N.; ERISTAVIO D.Lp red.; GIORGADZE,
0.11.0 red. izd-va; DMAPARIDZE, N.A.,, tekhn. red.
(Corroijion and the protection of metals in mineral waters of
Georgiu]Korroziia i zaahchita metallov v minerallrqkh vodakh
Gruxii. Tbilisi, Izd-vo Akad. nauk Gruzinskoi SSR. Pt.2. 1962.
270 P. (MIRA 15:12)
1. Chlon-korrespondent, Akademii nauk Gruzinskoy SSR (for
Erista,ri).
(Corrosion and anticorrosives)
(Georgia-4tineral waters)

P
S/598/62/000/007/034/040
D217/D307 -
AUTHORS: _T.!-~vadze F N., Mandzhgaladze, S. N., %shniani, T. S.
_1~1~ ;a~Hze, I. N.
and Z it`&R~i
TITLE: Corrosion resistance of new titanium alloys in a number
of industrial solutions
SOURCE: Akademiya nauk SSSR. Institut metallurgii. Titan i yego
splavy. no. 7, Moscow, 1962. Metallokhimiya i novyye
splavy, 246-252
TEXT: The corrosion resistance of new Ti alloys AT.3(AT3), AT4,
,A.T6 and AT8 was tested under various industrial'conditions at the
Institut metallurgii AN GruzSSR (Institute of Metallurgy, AS dS81R)
during the last few years. In this work, the authors extend cor-
rosion testing of these alloys to solutions encountered in'the
food industry, beneficiation plant and to tartaric acid oolut *ions.
It was found that the alloys resist the following solutions asso-
ciated with the food'industry: sweet, dry and strong wines, canned
Card 1/2

s/59a/62/000/007/034/040
Corrosion resistance of D217/D307
solutions containing cooking salt as well as those free from it,
and tea solutions with or without tannin. The corrosion resist-
ance of these alloys to solutions similar in composition to flo-
tation and hydrometallurgical electrolytes of the Tyrny-auzskiy
beneficiation plant, is satisfactory. The above four alloys and
the alloys AT82 and AT62 are resistant to industrial solutions of A
tartaric acid. Titanium alloys containing 3 - 43 Al possess the
optimum resistance. Further increase in Al content reduces the cor-
rosion resistance in purified solutions. Commercially pure Ti .13T-1
(M), whose mechanical properties are inferior to those of the.al-
loys AT3 and AT4, is attacked twice as rapidly in the above media
than these alloys. There are 2 figures and 5 tables.
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3/59 62/Q00/007/035/040
D217%307'
JkUTHORS: Tay dze. P. N., Mandzhgaladze, S. N., Lordkipanidze,
I. L'. and Dashniani, T. S.
TITLE; Corrosion of new high-strength titaniu'!n.alloys in mi-
neral acids
SOURCE: Akademiya nauk SSSR. Institut metallurgii. Titan i yego
splavy. no. 7, Moscow, 1962, MetallokKimiya i novyye
splavy, 253-262 .J_
TEXT: The six-component 0(-titanium-base alloys AT' (AT3), AT4,
AT6t AIT8.1 AT9 and AT10 were tested for their reeist'ance to various
mineral aci ,ds at various concentrations and temperatures. Besides,
specia-L tests were carried out in order to select alloys resistant
to acids at thei:v- boiiing points. Three specimens were suspended Ag
from hooks in a flask provided with a condenser. One of the test
specimens was tested in the gaseous phase, the second in the liquid
phase and the third in.an intermediate position. A water-line
_formed on'the latter between the boiling acid and its vapors. The.
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S/598/62/000/007/035/040
Corrosion of"new ... D217/D307
specimens were then removed, cleaned and weighed, and the acid so-
lutions containing the dissolved metal ions, chemically analyzed.
It was found:that at room temperature the alloys are completely
resistant.to HC1 and HNO3 at all concentrations, and to H2 8o4 of
up to 15% concentration. They also resist the action of aqua regia
and 30~* H 20, at that temperature. Their resistance to boiling HC1
3 . .4
is comparable Iwith that Of the steel 11X-tell~T(1KM8149T) and -!.o
boiling H2SO, 4with that of Pb. They possess a better resistance to
boiling HNO3 than the above steel, but HP rapidly attacks them. The
corrosion products of -Lhe above alloys consist essentially of Ti
and Al, the quantity of the latter being proportional to its con-
tent in the alloy. Besides, small quantities of Si and Pe go into
solution. Chromium changes to soluble corrosion products only in
HC11. The above alloys can be recommended for the manufacture of
plant for the chemical industry, designed for service in contact
with various acids. There are 7 figures and 6 tables.
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S/59 62/a00/007/036/040
D21007-z--
AUTHORS: TavildZe
__ P. N., Mandzhgaladze, S. N., DaBhniani, S.
and Lordk1p_a_n1Tze, I. N.
ITITLE: Corrosion of the titanium alloys AT3(AT3), AT4, AT6 and
AT8 in waters of various compositions and in the atmo-
sphere
SOURCE: Akademiya nauk SSSR. Institut metallurgii. Titan i yego
splavy. no. 7, Moscow, 1962. Metallokhimiya i novyye
splavy, 263-273
TEXT: Tests were carried out in distilled and in tap water at 20,
100 and 1'700C. The tests at 1700C corresponded to a pressure oil ap-
proximately -10 atm, and-hence they had to be carried-out in an
autoclave, Besides, Ti and its alloys, together with other metals,
were subjectbd to field tests in mineral waters and their vapors.
In order to study the kinetics of the electrode processes and*to
obtain data on the possibility.of using these alloys in contact
with other metals, the irreversible electrode potentials were mea-
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S/59 62/000/007/036/040
Corrosion of.the titanium D217YD307
sured and polariisation,curves plotted. A series of corrosion tests
of the Ti alloys-under various atmospheric conditions was -also car-
ried out. It was found that AT3, AT4, AT6, AT61, AT8, AT8 1 and
AT10 possess a good resistance to distilled water at room tempera-
ture, and to_tap water at 100 and 1700C. The above alloys are re-
sistant to mineral waters of the Borzhomskiy ore deposits in %
NaCl solution. Their resistance to waters of various compositions
is due to inhibii;ion of the anode reactions. Titanium and itart-
base alloys will be cathodic to all metals, except Ni and Ag, in
0.5 N XaC1 solution, and will cause rapid destruction of the ano-
des. After'.5000 hours' exposure to atmospheres containing H2S,
nitric oxides, SO2 , ammonia, carbonic acid and other gases, polished
alloys retain their reflective properties. The corrosion resistance
of AT3 and AT4 under most atmospheric conditions is superior to
that of the other alloys, and they are recommended as a material
for memorials and decorative articles designed for s'ervice in in-
--dustrial atmospheres and under tropical conditions. There are 3
figureB and 8 tableB.
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Acmaiou in, Awmig"
i SCUM# ftforatbm4w sbmale MetWorgiras Abe
AMHORS Tared"S Wo N
79USs Ufoot at U:Ltxftu on the hi&-ta"reture etmugft of Fibsoldna-unuan"S
840tenital
(MM SOMM Tre Gmse politekbuo ln-tj, Do* 2(62)o lWo 2345
TOPIC TAOSt Austaulte strengthp nitrogen watedites carbon austealtep autwite
beat resistance
TRANSIAUCKS Relationships governing Uw change in high-tevperatum strength with
cov"ition, were established for the aLloys of lndivWual sections of the Mlawlng,
Fe-Cr-Un systemw Fe--Zr-4b-.N# Yea-Gr"-Mn-M*-4p Fe-Cr--Mn--Ma-.W-4q reftwGraw
Xn--Xo--W-4n)--g wA The foUrAng dlWam, won
Oowtmdedl (ILI vition va cheap In the bending deMatica,, ad (b) agonno
Sitlon Vve tine L"dmt tar the buM yer TOOP ad a'stm# 0C 35
12
Icam
-~", "qv

AOXMICN NR# AR4036261 I
it was shown that the high
-temperature strength of different system with the saw
C' N content increases with the mmber of the components in the X solid solution*
In order to find the most heat resistant composition of CZQ4n steelq it, is not
enough to use multicompx1ent, &DAYIM of Un BOW 801utione Components mst be
1wesent which produce a-prolonged precipitatim -hardening without removing the a3.#-
loy elements from the matrix and which hinder the difftwim processes am the co-
agulation of the diaWsed phases s Nb and No# or Ub and No In combination with W
are recommended as such components., It vu shown that multicomponent alloyed Cr
carbon austenite bas a I;reater tendency toward decomposing ad Is lass h"t resist.
t io s:
ant than austenits ombLining N A
for the -man content, of the other els 0~
700-750 and streages at 15 iWi=4 the greatest wgb,. MW strength Was
hibited by stse2a -conta:U%Lz4g (in %S Cr 25-20, M Xb
0 MO W.09540
ad N 00. 5.4050 Authaeld
sumarre
AMt %?AyiiA- M C=s IM

TAVADZEY F.N.; FLITRIASHVILI, B.V.j LAMBAVA.. "o
07orheating of cupola iron. Litproizv. no*3:3D-12 Mr 162o
(KMA .1513)
(Capola furnaces) (Electric beating)

TAVADZE, F.H.; 1. r-h.
11 1
Effect of vacuum tre n~ent on stnit-tural transfoi-matiorn in
~j Oetc Oruz. I no 4 1 :51-56 t 6-7 (MIRA 17.-8)
cast Iran. Trudy GIT I I
iII

TAVADZE, F.P.; &LRn1Z1V-, Ye.S.
SurDice saviratIon by lithium of Iron, cobalt, and nIckel.
Trudy GPI (Ghiz- I r.0.4-.57-*3 f&! (Miu 17:8)

s/12q/62/ooo/oo4/oio/o1o
E193/E383
AUTHORS: Tavadze, F.N., Academician of AS Georgian SSR
and Kovshikov, E.K., Engineer
TITLE: Conference on metallography and heat-treatment
PERIODICAL: Metallovodeniye i termicheskaya obrabotka metallovo
no. 4, 196z, 61 - 62
TEXT: A conference devoted to new developments in
metallography and heat-treatment of metals was convened in
Tbilisi from December 7 - 10, 1961, by the governing bodies of
administrative, technical and scientific organisations.
The following 25 papers were delivered:
"High-tempera~ure strength of chromium-manganese austenite
with various alloying elements as a function of the nitrogen
content" by Academician of the AS Georgian SSR F.N. Tavadze
(Tbilisi);
"New methods of producing high-strength stools" by Doctor of
Technical Sciences Professor S.M. Baranov;
"Alloying"of stetels with nitrogen and some data on the physico-
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