SCIENTIFIC ABSTRACT SLEDZIEWSKA, E. - SLEPAK, E.SH.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001651310020-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 25, 2000
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

, inz. (Zabrze)
'", -.r;i(@I, in t"t;El -at clate. Przeo' scq-4 16 no.lO!,,,4,6-247 0 '(4.
A " - , tl .

SIEDZINWISFI, iFZ@ "'l*Is"@-,:-
A c i - a r., le r; f a c. r a n e 1) ewa @ F r z 9 K i ,, I @ j -a w 0 n , . 2 -. 4) r- 65.

MOSZEWP J.j SLEDZIEWSKA, E.
Reaction course of the sy-nt-heal-; of benzodiazaanthracens derivatives
as determined by the type of triarylguanidine used. Bul chim PAN
12 no.6099-402 164.
1. Department ot Organic Chemistry of Jagiellonian University,
Krakow, and Laboratory No.6 of the Institute of Organic Synthesis
of the Polish Academy of Sciences. Submitted April 8, 1964.

SLEDZIEWSKA, Ewa
7;u-af:'.--3n co-,-L-se of "n-c- synthasis Df rlla--aant@@-azene de=r-4-at=-S
-:iur)en`-nL? an th Ly@@e cf t-'aryljuqn-*:;"nes useO. 1-2.
;-'race cher. KrakQw no.9:1-9-Y--3 164,
1. DeparLment o' Ctganl@-. C'Iie-mistxy j-agif.llonian University.
V 'j- @
., rak ow, Siflf-jmit'erd 1., 10")

cc--Nk--.-&--j6035460 (N) SOURCE CODEt PO/0099/66/040/004/0621/0629
;Moszew, Jan, Bala, Marian and SledziWska, Ewa-of the Organic Chemistry Departmentg
lJagiellonian University (Katedra Chemil Organlcznej Universyteru J&g1q1lPT!Pk1qg0)
Krakow.
"Absorption of Ultiaiil6let and Visibli"Light by Tatralin Derivatives"d-
Diazaanthracene and Quinolinen
Warsaw., RocAQ 1241, Vol 40, No 4., 1966s pp 621-629.
Abstrac,t (Authors" English abstract): The UV and visible absorption
T-p'@dti,a'for the derivatives of 102-benzo-4-(21-tetralin)-3,,9-diazaanthra-
ccnrj., 2-(21-tatralin)-4-hydi~mV-quinoline and 2-(21-tetraline)-4-anilifio-:
quinoline have been determined. Sme ouggestione-concoming.,tho.straotureI
f the studied cq!Ppoy!#s are advancede igures and 2 ta@blexe
orig, art* has: 3 f
CJFRS 1 360862
TOPIC T&GSt 'U`V absorptiont anthracene, nonmetallicorganic derivative
SUB CODE3 07,/ SUBH DATE: 01 Jul 65 ORIG REFt 006
Cc-rd
?*1/ 921

ZABEK Zbgniew@ @IJP _,Janus
0 _ p
Gravimetric liaison Warsaw-A.B. Dobrowolski Station at the
Antarctic. Geod i kart 9 no.3A:197-208 160.

SLEDZIEWSKII L.
"Some Problems Of Water Catchments For Water-Supply.Furposes.ff P. 327. (Goppodarka Wodna.,
Vol. 13, no. 9, Sept. 1953, Warszawa)
East European Vol- 3, No-2,
SO: Month List of /Wan= Accessions, /Library of Congress, February, 1954 2plor, Una.

LEWANDOWSKII MieczYslaw (Plcc'--)-'-SLFDZIEWSKI, Marek (Plock)-
Preparation of the technological elements for the construction
on the territory of the'"Petrobudowall PrL,4ect. Przegl budowl
i bud mieszk 34 no.4/5s235-239 Ap-Yq 62.

SLEDZIEEWSKI, Miarek (Flock)
. -1----------.- --------
Construction of the refining and petrochemical works in the
Soviet Union. Przegl budowl i bud mieszk 34 no.4/5:240-243
Ap-My 162.

SLEMIEWSKI, Rown
An amplifier for a thermal differential analyvis, Sxklo 12 no.8:
230-231 Ag 161.

SLEDZIEWSKI. Roman
A transistorized decade of an electronic comter. Mikleonika 7 no*2;
:123-126 162.
1. Instytut Fizyki,, Uniwersytet Jagiellonski, Krakow

SLEDZIEWSKI, Roma-n---
"Microtron," the electronic cyclotron. PostePy fisyki 13
no.3:335-352 162.
1. Instytut Fizyki, Uniwersytet Jagiellonski, Krakow.

'SLED-ZIE-WSKI, Roman
"Hallotrons" by W.Giriat, J.Raluszkiewicz. Reviewed by Roman
Sledziewski. Postepy fizyki 13 no.3:362-363 162.

SLEDZIEWSKI, Roman
"Technique of measuring radioactive radiationF by V.Ynent, A.Kuhn.
Rev-lewed by Roman Sledziewski. Acts. physica Pol 23. no.2:275-276
F 163.
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CAMORY I
ABS. JOM. t Noe 5 1960s NO. 106728
A-U71 rop, t Sledzik, J.
?-, . - --.-- j
Not gi-ven
T L S i Modified Bohm and Pines Collective Describtion of
E.1ectron Interactions in Crystals. 11,
CRIG, PUB, i Acta Phys Folon, 18, No 1, 5/-?3 (1959)
ABSIPACT Application of the appropriate canonical transfor-
mation results itn the elimination of the interac-
tion term from the Hamiltonian. As a result, the
Hamiltonian contains terms characterizing the
weak attraction of the electrons and ions for each
otUer and the weak renulsion between electrons and
i
espondirg forces are small,
ions. Since the corr
they can be neglected. Assuming the validity of
the adiabatic approximation, the Hamiltonian can
be markedly simplified. The same approximation is

4v
Poland B-5

A'
111
j(Mj t 672 6
0.
o6o
5 1
No,
RZKhim
No
.
. ,
e
.,
e.,
ALI @ ECTIR
@T.
71 Z@ B

RTB.

,.,,t6'M.ACT I
appli ed to the calculation of dispersion relation-
L
5hips. The author notes that inasmuch as the
transformations are not rigorously carried out, the
Hanil@onian obtained and the additional conditions
shoul; be discussed as postulated rather rhan de-
duced. For Communication I see RZhKhim, 1059, No
24, 85029.
I. Dykman

2/2 10

Modified Bohm and Pines Collective Description of POL/45-18-4-3/8
Electron Interactions in Crystals. Spin Wave
Theory of Ferromagnetism. III
representation, the author obtains the Slater-Bloch equati ns
for the exchange integral 11
v screening parameter
and the energy spin -waves The final results for the
spontaneous magnetization of three types of cubic lattices
(simple, body-centered and face-centered) are described on
the basis of the Slater-Bloch equation. In order to compare
the Bloch analysis and the theory presented here, the results
obtained are applied to the hypothetical metallic hydrogen.
Table I shows numerical values of a derivative function P
which implies the energy of the system, supposing that all
spins be directed along the.external magnetic field. As may be
seen from table I, this assumption (saturation magnetization)
laads to a maximum energy for the system (the second
derivative is negative), while only the minimum value of
energy would stabilize the system. Hence, the author con-
cludes that metallic hydrogen cannot be ferromagnetic.
Figure 2 shows a comparison of the author's exchange integral
with that of Bloch. The author thanks Professor S.Szczeniowgki
Card 2/3 for suggesting the subject of this paper and for many valuable

J
11,4110
'AUTHOR:
TITLE:
PERIODICAL:
P10451611020100110011"(
3108/B209
Sledzik, Jan
n gas of metallic
Collective oscillations in an electro
density. The correlation energy. I
Acta Physica Polonica, '. v. 20, no. 1, 1961, 3-22
TEXT: The present paper is an attempt to describe the collective
oscillations of an electron gas of alkali-metal density. According to th
theory established by Bohm and Pines (Phys. Rev., 92, 609, 1953)t two set
of subsidiary conditions are necessary. According to the present author,
these conditions must assume the form of oDerator identities in order to
fulfill the chief requirement, namely to reduce the degrees of freedom to
3N (N denotes the number of electrons in the system concerned). After a
Presentation of the Bohm and ?ines theory the author gilres his aDDroach t
the problem, consisting in the replacement of a cer ta4n number of excited
electron-hole pairs and the changes in charge density they cause, by an
effective oscillator field describing the long-range density fluctuations
Card 1/5
89376
Collective oscillations in an electron... P/045/61/020/001/001/0 6
B108/B203
The system is assumed to consist of N electrons immersed in a uniform
Positive charge background within a cube Of volume V. IN/V = const.
Actually, the above-mentioned electron-hole pairs are local charge
inhomogeneities arising from electron collision and met by a collective
rearrangement of charge. Creation of a certain number (here n1/3) of pairs
and charge re-distribution is described through an effective longitudinal
field given by the vector potential
being the n' field coordinates. Erc" qk 4 e'h (3.1)
q
k
now Subsidiary 66H@E-6ns are -sup'-e-r-flu--o-u--S---
, since the total number of degrees of freedom i-S correct: 3(N-n'13) of
the electrons Plus n' of the field = 3N. The Hamiltonian
f, Mez
In + e + 2n ph @_
C V _0 fdr E-(r) -
-1 N@0 dr _jV'2 e: rr dr dr'
Y' ?'-=rl + -Tff-JJ F-_rT (3
kj 7000 and an exposure time of 10 hrs., a decar-
bonized zone appx. 0.5 mm wide appears in 15KhM steel and con--
tinues to grow to 1. 5 t 21 mm if the exposure is kept up, while the
2 T
-'k fall.; to 11.5,3 kgrn/cm . The welding of E ' 448 and EI 531
stee13 ( 'the C in this type of steel is tied into carbides) produced
@L questionab'je WC; the sharp boundary b64`ween'tHe@atVels does
not disappear with heating up to 700-7500 and an exposure of up
to 50 hrs, 2but the WC becomes brittle and the ak goes down to
3 kgm/cm. , WC @_Amples made of El 257 and 15 KhM steels
had an of 57 kg/mm-', , a fold angle of 1800 and ak Of
13 kgrn/cm.-2. A boiler Qteam superheater was welded together
out of ;.uch steej.@@, WC'.@ made of pipes of El 257 and EI 531
5teel were investigated at. room temperature and at working tem-
perature@--. of 400, 450, 500@ 550, and 6000. The mechanical
properfie.@ of the WC's were compared to the mechanical prop-
Card -1./3 ertiez of the ET 531 Lteel. 'In te,;tins the WCI@-, the minimal

1 37 - 19 5 7 - 12
The Weld -joining of Stedm Superhe_aier Pipe-, MAe of Different Steels
value cl .1k wa.,.; 2 kgrn/cm2 at NO '-nd 12 kgm/CMZ at 600'
and the fold angle 180o, The gre,@Aeit tk (of H kgm/cm2)
w;u@ obtAined iffer 30 min- of dnnc-.,@ing at 7000. In the tensile
ke;J failure occured zix@; for the El 5.31 -Aeel; the 8 . , Y/ , and
,k of the WC are :-iomewhat lower thzin in the basic'EI 531 metal.
The endur:.nce of the WC iz@, higher th,tn for the El 531 steel.
The ak of the WC increases at room temperature as a result of
aging 0 cng expo--4ure at 600--7000) from _' to 10 kgm/cm2. A
teA of the WC for sc-,ile rt@-;,@+Iance demonstrated that the El 531
steels beloncy the group with '.cwer re@iistance; the contact
Welding doe:-, not impair the corrosion properties of the El 531
e e
V. B.
1. Flash welding-Applications 2. Steel-Flash welding
3. StetLra pi-pes-Flash welding
Card 3/3

129-3-4/14
AUTHORS: Gellman, A.S., Griboyedova, T.S., Ye.A. Davidovskaya,
Lazarev, B.I., Iyubavskiy, K.V., Slepak, E.S., Trun-in,
I.I. and Fedortsov-Lutikov, G.P.
TITLE: Investi -gation of the Steel 1X18H12T as Tube Material for
Power-goneration Equipment (Issledovaniye stali 1K'hl8Nl2T
v kachestve trubnogo materiala dlya energoustanovok)
PERIODICAL: Metallovedeniye i Obrabotka Metallov, 1958, No-3,
pp. 16 - 24 (USSR).
ABSTRACT: For producing tubes operating at super-critical steam
parameters, it is necessary to have available a cheap, strong
and ductile material whic@ has a stable structure and stable
properties at 550 to 650 C, is not inclined to develop inter-
crystallite corrosion and possesses good technological prop-
erties. The work carried out in 1952 and 1953 by TsNIITMASh
jointly with the imeni Ordzhonikidze Works (Ref.1) proved that
it was possible to utilise cheap eel of the type lXl8H9T for
operation at high temperatures. tater, complex investigations
were carried out with this steel as a material for tubes of
super-critical parameter power-generation equipment. The
steel 1X18H9T may contain large quantities of ferrite and, after
long-duration annealing at 600 to 700 0 C2 it embrittles due to
Cardl/4 the formation of a cr-phase. Increase in the nickel content

129-3-4/14
Investigation of the Steel 1X18H12T as Tube Material for Power-
generation Equipment
to 11-13016 brought about an appreciable increase in the stability
of the austenite without affecting -the high strength. This
steel, designated as lXl8Hl2T steel, does 0not show any (x- or
a-phase se8aration during ageing at ?00 C for 10 000 hours
and at 750 C for 3 000 hours; only slight quantities of
carbides were found to separate out- 2Thereby, the impact
strength is maintained at 22-24 kg/cm for this steell W@ilst
in the case of the steel lXl8H9T, it drops to 9-18 kg/cm . The
investigations described in this paper were carried oLt cn C=Ercial
tubes, rods and also on laboratory produced. steels with
compositions as given in Table 1, p.16. The results are entered
in tables and plotted in graphs. It is concluded that the steel
1X18H12T. containing 0.08-0.12016 C, max. ?Y16 Si, 1-2% Mn, 17-18.5%
Cr') 11-13016 Ni, max. 0.20016 S and max. 0.035016 P, is suitable for
operation at high temperaturesi the Ti content of the steel
is thereby determined by means of the formula 50-0-02). The
best combination of mechanical properties was obtained after
annealing at 1 050 to 1 100 C for 30 min. and cooling in air,
and this regime is recommended for tubes as well as for bends.
Weld joints should be annealed at 1 000 to 1 050 C for 1 hour
C;ard2/4 and then cooled in air. The mechanical properties of steels

129-3-4/14
Investigation of the Steel 1X18H12T as Tube Material for Power-
generation Equipment
ASSOCIATION: TsNIITMASh
AVAILABLE: Library of Congress
Card 4/4

25(l)
SOV/l 3 5 -- 59 -- 5 -81/21
AUTHORS: Slepak E.S., Candidate of Technical Scierces; Gel*maa, Pro-
fessor, Doctor of Technical Sciencee
TITLE; Some Aspects of Flash Welding of Heat-Resistant Austeniti,-
Steel Tubes
PERIODICAL: Svarochnoye proizvodstvo, 1-959, Nr 5, pp 20-24 (USSR)
ABSTRACT: Experiments carried out in TalITITMA311 on the butt-welding of
steam-superheater pipes, made of several austenitic steels,
made it Dossible to es-tablish cer@ain characteristics of
flash-welding this class of heat-resistant steel, The tubes
in ?@,.ick-
.velded were 32 mm, in diameter w4-Th wa@ls 5@5 - 7
ness and were made o@P austen-41.41c steels with varying chrome
and nickel content (Table 1). The welding was carried out
using machines with a power of 75-200 kilovolT-am1peres and
pneumatic-hydraulic drives, with flashing ofl- and heating
proceeding according to an automatic cycle. It was found
that the mechanical qua' 'Ities of well-made thermally un-
treated welded joints of steam superheater pipes of heat-
Card 1/3 resist-ant austenitic steels, during short and lorg tests in

3OV/135-59-c--"/21
Some Aspects of Flash 7,ellding of Heat-lResistant Au3tenitfc Stn-e-.1.
temperatures ranging frovri room to vv,@rkf_ng tcmperature,
approached tho 7,-.,rrn-_ip,.jrdinj; qwllitOu of the ba.-@ic metal of
the pipes. The limit (if prolor;ged strength of tht@,rmally
treated and untreated welled connec@ions of austenitic pipes
corresponded to that of the basic metal. As a rule@ thermal
treatment of the a/m welded connections is not required.
During prolonged exposure to w--rking temperatures, marked
equalization of the microstructure in 'the butt zone sakes
place. The mechanical properties of the -aelded c3rnection
and the basic metal change equally. The chemical c3mposi-
tion of the austenitic steel e3sentially affects the weld-
ing procedure. Its higher parameters, in particular those
of its precipitation, are required with an in-crease of the
chrome content and reduction of its flowability. In this
case, there is no relationship between she mechan---cal prop-
erties of austenitic steel at 'high temperatures and the par-
ameters of its precipitation during flash welding. The high
Card 2/3 temperature tests were carried out by D.P. Bexezhkovskiy and

SOV/1 ]5 5-- 59- 5 --8/21
Some Aspects of Pl&.sh Welding of Heat-Resistant Austenitic Steel Tubes
the 'Llowability of the steels determined by V. G, Gruzin.
There are 5 graphs, 2 tables, 1 diagram and 4 photos@
ASSOCIATION; TsNIITMASH
Card 3/3

13 9 - 7 -6-V 15
AUTHORS: A.'@. 7-tocto-- of Tec-.nilcal Sciences. Professor.
a I I d, T'
Cand' 4so+e of Technical '--iences
lt,'-'Sclciii-!@-er @ c,@, ."@ , fda-+@e of Tec"ar-lical
Yr.I
"Ica-zal
Puld@I
@,
n
,
.
,
TTTL-E, i--.@n @@ -pot Weldi nu of R----lied 9--'Ueel

PERTOD!Crk!,@ 191@0, Yr 7@ pp 10-'-0 (U99R)

ABSTRACT: review exrerien:,,e in proJection s-pot-

of ho'-rolled s'eel sliec-ts a-L -he @'yt-shchin-
dinc
zpvod II-fyt-shchi Alachine
-n I a ri. - t h ethod was si ested by TsITTTT-
!j ASh several years af-o. then studieO by ff!TTAvPnpr?nv

inally it I-troducecl at Vie aforementioned
f
plant, T`iere it -i-Jsed for the man-afecture of semi-
trailer n-,?.rts v.,"n satisfPctory results, The authors
operal--ional data In tables and graphs. There
present
C ai d '
P-,otf)--ra,@-is, d-'rgrams, 3 tables and 1 graph.
Pre -. -1

'7 PV./ 1 `-7-6/1
Projectior pot 'Veld`n- of rlot Rolled '@'--eel
ASSOCIATION: TsNIIT'e'.@,Qh; NITTAVTOMW@., "yt i P,'h chins ki-.r machino-
stroitel'nyl,r zavod (T,,"ytishchi "achine Puildillg
'r 1 t

-1 e, ( 5 ). SOV/135-59-8-6/24
AUTHORS: Astaflyev, S.S,, Llvov, D.S., Rozhdestvenskiy, Yu.L.
and Slepak, E.S. Candidates of Technical Sciences
TITLE- Butt Welding of Antifriction Bearing Ring Blanks
PERIODICAL: Svarochnoye proizvodstvo, 1959, Nr 8, pp 18-21 (USSR)
ABSTRACT: At the present time the blanks of antifriction bearing
rings are usually produced by hot stamping on horizon-
tal forging machines or by -turning from thick-walled
pipes. The coefficient of utilization of the metal
for conical bearings does not exceed 0.40-0,45. The
rapid progress in mechanical engineering, however,
which is urged in the resolutions of the XXI Conven-
tion of the Communist Party of the Soviet Union,
requires a considerable increase in the output of
bearin.-s. It is especially important in this connec-
tion to find a more efficient technology in the produc-
tion of the bearing rings. In the following part the
results of an investigation are given, which was car-
ried out in the Institute of the Bearing Industry in
Card 1/5 collaboration with the department for welding in the

Butt Welding of Antifriction Bearing Ring Blanks SOV/135-59-8-6/24
TsNIITMASh and which dealt with contact welding of ring
blanks. The material,- the bearing rings were made of
chrome steels ShKh 15, ShKh 15SG, and the low-carbon
steels 18 KhGT, 12Kh 2N4A, and 20Kh2N4. The steels of
the first group have a high stability; they have a
high resistance to fatigue and wear and are resistant
during welding and mechanical treatment. The steels
of the second group are cemented, and after the harden-
ing they have a tough core, which improves their work-
ing qualities under conditions of dynamical strain.
The first thing to be studied was the welding of the
outer ring blanks of the bearing 310, which is made
of steel ShKhl5 and has a section of 30x12 mm (the
welding of rings of this steel was studied under the
direction of A.S. Gellman, TsNIITDIASh, in 1947). After-
wards the welding of outer ring blanks of the conical
bearings 7815, 7514, 46215, and 7718 of the steel
18KhGT (Table 1) with a section of 12x34, lOx27, 8x30,
and 12x43 and an outer diameter of 135, 125, 130,
and 155 mm was examined. If chrome (about 1%) and
Card 2/5 manganese (0.17-0.18%) are added to the steel l8KhGT

Butt Welding of Antifriction Bearing Ring Blanks SOV/135-59-8-6/24
the durability, impact resistance, and hardness of
the steel is improved without impairing the plastic
qualities to any considerable degree. Titanium helps
to prevent a growing of the core when the steel is
heated to 1000.-1100 0, combines the carbon in carbides,
and reduces -"-he percentage of perlite in the steel,
thus improving Its plasticity. Besides, the titanium
neutralizes oxygen and nitrogen, which are the cause,
for an ageing, in nitrides and oxides. The equipment-.
@4g test rings were wC@lded on a butt welding machine
with !ever -ear and a capacity of 75 KVA and on semi-
automatic machines with a capacity of 150 and 300 KVA@
The blank3 were clamped between the electrodes of the
machine with the edges or sides. The welding of the
blanksg butt welding was examined with and without
preheating. The welding teats with rings of steel of
type ShKhl5 showed that it is possible to obtain
joints of good quality if the butt welding is contin-
uous, In the experiments with this sort of steel it
was found that the carbon is to a certain extent re-
Card 3/5 duced along the line of the seam. To get rid of this

Butt Weldinff of Antifriction Bearing Ring Blanks SOV/135-59-8-6/24
undesirable effect an additional investigation will be
necessary. The work with steel of type 18KhGT was be-
gun with tests in butt welding with preheating. Good
welded joints were obtained with this method. To get
a better clamping of the rings in the machine an ex-
tention space was left in the welding zone. To com-
pensate the shunt resistance in the welding. of the
rings a secondary voltage of 5.2-5.6 was taken instead
Of that used for welding of straight blanks which is
only 4.5-5.0. It was confirmed that the best results
were obtained with continuous butt welding. In some
of the seams, however, flaws in form of oxides were
observed, The influence of hot deformation on the me-
chanical qualities of the welded joints was also stu-
died, and dilatancy tests were carried out. The high
requirements to the stability of the products made it
necessary to work out control methods, which do not
destroy the welded joints, for conditions of mass pro-
duction. The magnetic and ultrasonic methods are both
used. The main advantage of the new technology is
Card 4/5 the lowering of the cost-price by considerably raising

Butut Welding of Ant-if-riction Bearing Rinrr Blanks SOV/135-59-8-6/24
-the coefficielit of utilization of the metal. The au-
thors come to the following conclusionst the possibi-
lity and practicability of producing embossed welding
rings with the new technology are shown, which guaran-
0
tees an utilization coefficient of the metal up to
0.65. The hot Plastic deformation of the welding
ring somewhat raises the plasticity of the welded
joint, whereby its impact resistance is strengthened
while the values of the fluctuation and stability re-
main fixed. An effective control of the quality of
the welded joints can be achieved by distributing the
rings after the welding and by using ultrasonic defect
detection methods. The working ability of the embossed
welding rings of steel of type 18KhGT is as high as of
those of steel of type ShKhl5, which were manufactured
with the described technology by turning from forgings.
There are 3 photographs, 2 tables, 4 graphs and I dia-
gram.
Card 5/5

87887
I'l-5oo
S/114/60/000/001/007/oo8
E13,IIE483,
AUTHORS' -Slepak, E.S., Candidate of Technical Sciences and
K_o_zha_ye_v_,_X-.77 , Engineer
TITLE: Resistance Welding of Steam Superheater Pipes in
Boilers for Heavy-Duty Service
PERIODICAL: Energomashinostroyeniye, 1960, No@l, PP-37-40
TEM Owing to critical service conditions of boilers nX -30
(PK-30) and ITK -37 (PK-37), their steam superheaters have to be
made of stabilized austenitic steel BM 695P(EI695R),-which
contains 0,0083% B and 1.28% Nb, and which has been found to be
more suitable for resistance welding than the unstabilized variety.
The object of the investigation, described in the present paper,
was to obtain more data on the effect of the boron and nioblum
additions on weldability of austenitic steels of this type. To
this end', the effect of various factors on the mechanical
properties of resistance-welded tubes (32 mm O.D., 7.5 mm wall
thicImess) was studied. In the preparation of the first batch
of expevimental test pieces, two resistance-welding schedules
were used, the main differences between which are tabulated belcw;
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S chie@diil_6_
Process Parameter
Se,;_,ondary voitage (no load), V 6.4 - 6.6
Duration of the pre-heating cycle,
sec@ 4.o - 6.o
"Burn off " allowance, mm 6.o - 6.5
Average rate of fusion, mm/sec, 3.4 - 3.6
"Push up" allowance, mm 5.0 - 6.0
Upsetting under current. mm 3.5 - 4.o
Upsetting pressure. kg/mm2 14.o -i6,o
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6.5 7.0
4.o 5.0
7.0 8.5
3.0 3.5
5.5 - 6.5
3.0 - 3.5
12.0 -14.0

8
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Tubes welded under these conditions could be bent. through 180"'
without cracking, However. in some of the tubes, welded
ac-..ording to Schedule I. tears (sometimes extending throughout
the wall of the tube) were found after the bending test. These
defects had de,veloped on both sides of the weld, 1.5 to 2@5 mm
away from the seam. Fracture of specimens, tested for tensile
and impact strength, also took place in these regions, whose
hardne5s was 200 HB, as compared with 144 to 170 HB of the
adjacent zones. The results of the next- serlie5 of experiments
showed that the mechanical properties (U.T.S., yield point,
elongation, reduction of area, impact strength) of the weld
(not subje:Aed to any heat-treatment) were practically the same
as those of un*reated steel, No embrittlement of the weld was
observed in steels E1695 or E1694 OW 695 or D-M694), containing
0.41% Nb, but increasing the Nb content to 0.5% led to the
development of brittle fracture, It was inferred therefrom that
the observed defect was caused by the formation of intermetallic
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tompounds in the region heated to a high temperature, the effe-ct
becoming significant only in steels with a high niobium content,
The fact that welds in steel E1695R, containing 1.28% Nb, were
ductile when welding Schedule No.II had been used,,was
attributed to larger "burn off" and "push up!? allowances, as a
result of which the embrittled parts of the components were
fused and squeezed out from the weld, (It has been shown
experimentally that the embrittlement of the near-weld region
tak,es place mainly during the pre-heating cycle,) These
findings indicated that continuous flush welding should be used
for joining steels of this type, However, in ihe case of tubes
with small inside diameter,, flush welding with a large "push up"
allowanc,e may cause difficulties in the removal of large
internal burrs, formed by the large quantity of metal squeezed
out from the weld during the upsetting stage, It was for this
reason that the effect of heat treatment on the properties of
welds, made acLording to Schedule I, was investigated. The heat
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treatment, -arried out in the welding machine, con.51sted in
heating the weld to 1000 to 1200@C for 1 1:0 5 min, No tendency
to crac-king during bending tests was observed in welds subjected
to this treatment, which had no adverse effe.:1-s on other
properties of the"steel, Best results -ere obrained after
I to 3 mi-n at 1200'C. this treatment bringing about dIssolution
of the phase pre@_-ipitated during welding, homogenization of the
microstructure of the weld, and formation of coarsely-
crystalline austenite with uniformly distributed carbides, Thus,
it was established that the problem of making ductile welds in
stainless steel tubes, without the formation of unduly large
internal burrs, can be solved by resi-stance welding according to
Schedule I followed by the heat treatment described above,
In the next stage of the investigation, the effect of ageing at
66o to 700@C (i,e, at the service temperature) on the micro-
structure and mechanical properties of the welds., was studied.
It was found that the effe;-t of ageing on both the weld and steel
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itself was the same in that their UT,S, and yield point
increased and their plasti%ity decreased with increasing time
at the ageing temperature, A sharp decrease in the impact
strength was observed in both cases after 500 h at 700*C;
however, further ageing at this temperature caused no additional
deterioration in this property,. It was found- alse, that tubes,
welded according to Schedule I without subsequent heat treatment
and aged at 700'C.- could be bent through 1802 without crackIng.
the next series of experiments was to study the
The object of f
problem of da-burring of welded tubes whose bore (Irl the case of LX
tubes 17 nun I.,D.) was alm3st compIc-tely bl,3--ksd after -the flush
weld.Lng operation, The pneumatically operated det@-burring tz@sl,
illustra,ad in Fig.5. -used to get jammed in @he mer.al when used
on f-tibes welded a,@.cording t- S.@IiE-dule I, rhis diffi,-;ulty was
Over-c.ome by -ub
je.@.,iing the ld -o the same beaz treatment that
had been appli.ed in ord,---r rcndir the weld tn-cr& due-1-ile.
After @his trea@m,-_nt..- thE m=-tal blz-@king the bGre of the t-uba
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disintegrated into several small fragments under the action of
the de-burring tool and could be easily removed without causing
jamming of the tool. In the last stage of the present
investigation, resistance welding of unlike (austenitic and
pearlitic) steels was used. To this end, the effect of 3000 h
agei-ni at 6000C on the properties of welds between steel E1695R
on one side and steel 15XM (15KhM) or 12XMil (l2KhI%IF) on the
other, was determined. Whereas the impact strength of the
E1695R + l2KhINI7 combination increased slightly in the course of
ageing, that of the E1596R + 15KhM welds sharply decreased.
This effect was attributed to the fact that steel 12KhNIF contains
0.175'a' vanadium, which forms stable carbides, whereas no carbide-
forming elements are present in steel 15KhM, as a result of which
carbon diffuses freely from the latter steel to the austenitic
steel. The resultant decarburization of the pearlitic steel and
carburization of the austenitic steel leads to the decrease.in
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impact strength observed in welded joints between these two
steels. There are 7 figures, 2 tables and 3 Soviet references.
Fig-5-
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24
PHC. S. 06UXHfi DHA AOPHa.

PHASE I BOOK AFIXTATION sov/5623
Kabanov, Nikolay Sergeyevich, and Ezra Shmal vich Slepak
Tekhnologiya stykovoy kontaktnoy avarki (Resistance Butt-Welding Process) Moscow,
Mashgiz, 1961. 249 p. 13,000 copies printed.
Reviewer: S. F. Gusev', Candidate of Technical Sciences; Ed. of Publishihg House:
G. N. Soboleva; Tech. Ed.: Z. I. Chernova; Managing Ed. for Literature on
Hot-Processed Metals: S. Ya. Golovin, Engineer.
PURPOSE: This book is intended for process engineers and designers concerned with
resistance butt welding. It may also be useful to students specializing in
resistance welding at schools of higher education and tekhnikums.
COVERAGE: The fundamentals of pressure butt-welding methods are discussed. Data
on the resistance butt welding of a great number of products made of different
steels are presented, Recomendations are made regarding the selection of
welding conditions, electrodes, and equipment. Schematics for designing
transformers are also included. No personalities are mentioned. There am
68 references, all Soviet.
Card-I-X

SLEPAK -') E,S., kand.tekhn.nauk
Fusion butt welding of austenitic steel. [Trudyl TSNIITMASH
104:30-53 162. (MIRA 15:6)
(Pipe, Steel-Welding)

SLEPAK, E. S. (Cati(@Idate of Technical Sciences) NbNIIM-,tash)
"Welding of pipes with heaLing TLVCh has a promnis-ing future."
Report presented at the regular conference of the Moscow city administration
NTO Mashprom, April 1963.
(Reported in Avtomaticheskara Svarka, No. 8, August 1S,63, PP 93-95, M. M. Popekhin)
JPRS24,651 - 1-)- may 64

MIRLIN, G.A., kand. tekhn.nauk, dots.; SLEPAK, E.Sh., kand. tekhn.
nauk, retsenzent; SAVCHENKO, V-.S-. -,-Un-zV. -,-rod.; SOBOLEVA,
G.N., red. izd-va; ELIKIND, V.D., tekhn. red.
(Welding in the manufacture of motor vehicles] Svarka v avto-
stroenii. Moskva Maohgi% 1163. 267 P. (KRA 16:7)
(Weldingi (Automobile industry)