SCIENTIFIC ABSTRACT ROGATNIKO, L.B. - ROGELBERG, I.L.

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R001445110006-9
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
January 3, 2017
Document Release Date: 
August 1, 2000
Sequence Number: 
6
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R001445110006-9.pdf3.09 MB
Body: 
(Grinding machines) --9l- two- Covinarl, V. I ,k0, do nuoOlan.) tAvi JCp 1111.,ki. sod '24 3uly lto%. a. Irkjobil, klidso' T 1,flro 'thatthe 7krod m. the '30, t dy *bo* , j,,,.ntal 1~ 11 d forrallmg ,,, - F,3LIrjjT of the sclb basic fmc vouit. 111 11 the ,Itrto t 0 activity Of 'nion 0 ~Troldou ed Inic the tabulat deter-'" Dlt, are th~ -K- I ell, ROGATNIKOV, L.B. The VSh-178 machina for filing balls. Biultekh.-ekon.inform.- Gos.nauch.-issl.inst.nauch. i tekh.inform. no.6t27-29 162. (MIRA 15:7) (Machine tools) ROGATNIKOV, L.B. I . The VSh-120 centerless lapping machine. Biul.tekh.-ekon.inform. no.11:41-42 161. (Grinding machines) (MIRA 14:12) 1 ROGATNIKOV, L.B., inzh. New machine tools designed by the Vitebsk Machine-Tool Plant. Nash.Bel. no.6:17-28 '59. (MIRA 13:6) (Vitebsk--Kaehins-tool industry) ROGATNIKOV. L.B VSh-277 special semiautomatic centerless grinding machine. Biul. tekh.-ekon.inform.Gos.natif.-'h-.-issl.inst.nauch.1 tekh.inform. no.2241-42 163. .1 (MIRA 16:2) (Grindings machines) ROGATNIKOV. L.B. V5,-279 special semiautomatic centerless grinding machine. Bila. tekh.-ekon.inform.Gos.nauch.-issl.inst.nauch,i tekh,informe no.2:4.2-43 163. (MM 1622) (Grinding machines) T v v I ~~ ;-,,L -I R0hNIKOV,___j~.A,',Jnz'h.: NANOS, M.I.. inzh. A-- Tvin-spindle head for the 6H82 horizontal milling machine. Kash, Bel. no.6:168 159. WRA 13:6) (Milling maehines-Attachments) R,O-GATNIKOV, L.B. The BSh-304 semiautomatic ball-roughing machine. Biul.tekh.ekon.inform. 17 ro.10.-4(,.1,7 0 164. (MIRA 18?4)- ROUT-`v,I.Nfy inzh.; SHULIGINA, L.D., inzh. Use of PPF-LJIIIIZ flame photometers in the regulation of water in electric power plants. Elek. stat. 35 no.1:27-30 Ja 164. (MMA 17:6) VOYNITSKIY, V.Yu.; ROGATSKIN. 3.S. PTAFAKIMP". 7 beter'mining concentrations-ofreagent solutions in chemical water treatment. Inergetik 5 no.4:16-17 Ap 157. (NLRA 10:6) (Food-va.tor purification) ROGATSKIN. B.S.. inzhener; SIFUNOV, F.I., inzhener. Effectiveness of periodic scavenging of boilers through the lower points. Xlek.sta. 28 no-3:88-90 Mr 157. (MLRA 10:5) (Boilers) I ROGATSKIN., I.J., inzh. Welding-up of iron castingsfor t~e removal of founding defects. Svar. proizv. no.60-10 Je 163. (KIRA 16.-12) 1. Moskovskiy zavod "'Borets.11 IPATOVAJ, N.N.; ROGATOVSKIKH, G.M. Comparative clinical-morphological data on acute and chronic dysenter. Sov.med. 26 no.10:61-67 0 162. (KIRA 15:12) 1. Iz kafedry infektsionnvkh bolezney (zav. - dotsent N.N. Ipatova) Ryazanskogo meditainskogo instituta imeni I.P.Pavlova. (DYSENTERY) BATENKO. V.F., inzh.,, GVOZDEV, V.P., inzh.-. VAPLER. V.A., ~nzh.; P,rLISHCHTVOV, A.P.s inzh';29qA UNt B.S., Inzb.; BELYAKOVA, L.F., inzh.; KATkCV# G.S., inzh. Ion-exchnnge filters with compound operation in power blocks with 390 Mw. ratings. Elek. SUL. 18: 10) -1 '16 no.10:8-15 0 165. ARKHIPOV, A.M., inzh.; ZOANOV, v.r., Inzh.; HOGATSKIN, B.S., lnzh. Prestart cleaning of water and steam conduits of a 300 W. AVJfti,E-1ek. sta. 36 no.11:14-20 N 165. (MIRA 18:10) 104-3-38/45 AUTHOR: Rogatskin, B.S. and Sipunov, F.I., Engineers. -- ---------- TITLE: The effectiveness of periodic blowing down of boilers from C2 low points. (Ob effektivnosti periodicheskoy produvki kotlov cherez nizhniye tochki) PERIODICAL: "Elektricheskiy6 Stantsilf (Power Stations), 1957, Vo =.8, No.3, pp. 88 - 90 (U.S.S.R.) ABSTRA,CT: At present periodic blow down from the low points of drum type boilers is widely used in power statiom to remove sludge. There is a large number of low points on each boiler. so the work is laborious and much heat and condensate are lost several times a week. Authors of earlier articles have doubted the need for blowing dovm in this way on medium pressuie boilers. The question has now been studied experi- mentally in a high pressure boiler. Monthly watex, analysis figures are given for a period of nearly two years in a boiler type Tf~-230 of 100 atm. Water circulation diagrams are given and-the location of sludge deposits is described. It is concluded that during normal operation of a boiler the sludge contained in the water is in a state of suspqmsion 2 and is uniformly distributed. Sludge is deposited only at C&--d I/ places where the water is relatively still and then it is washed avray as soon as the water speed rises. Sludge is not 104-3-38/45 The effectiveness of periodic blowing down of boilers from low points. (Cont.) deposited at the lower points of modern high pres6iure boilers and there is no point in blowing down periodically to remove sludge. When the boiler is shut down, blowing down from the lower points is an effective way of removing sludge. Blowing down from the lower points should only be applied when the boiler is being lit to remove sludge; to discharge water from the boiler; to stimulate circulation in some parts of the boiler during lighting-up periods. There are 3 f igures and 3 Slavic refe:Lences. AVAILABLE: Library-of Congress Coad 2/2 BRESLER, S.ML; MIKHAYLOV, A.N.; ROGATY.KH, N.I. Incrtmsed resistance to the washl-ng out of leather Mxad ,--hrom.".Lm compo-i-inds. Nauah.--isal. trudy TSNIKP no,'003-36 263 ~MIRA 18:1) A4 ROCAVSKAYA, N. A. 581 FANDEEV, B. V., DMINA, K. A. i RUGAVSKAYA, N. A. Kholmogorskiy skot. Pod red. M. S. Blomkvisr. M., Sevkhozgiz, 19,14. 78 1. s ill.; 1 1. kart. 20 m. 20.000 ekz. 1 r. 5 k. -Z54-55225,/ p 636.2.082 (47.21) SO: Knizhnaya Letopis, Vol. 1, 1955 BAIKaADOV,~ K.; ROGAYEVSKIT. Ya.; TbVXTKOVA, S.V., tekhn.red. [Turkmen S.S.R.;.a concise account of its economy and culture] Turkmanakaia SSR; kratkii ocherk ekonomiki i kulltury. Moskva. Izd-vo vostochnoi lit-ry,.1938. 22 p. (MIRA 12:4) (Turkmenistan-Economic conditions) 11 ROGkYLIN, G.I. (Moskva) Neurodematitis and its treatment. Felld. i akush. 21 no-7:7-10 Jl q56. (KI" 9: 10) (SKIN--DISBASIS) ARLPfYUNOV, V.A., prof.; SHUBLADZE, A.K.- BERENBEYN, B.A.; MAYEVSKAYA, T.N.; ~OGAYLIN...,G-L-. Marrow-Brooke's contagious follicular seratosis. Vest, derm. i ven. 38 no.11 26 34 N 164. (MIRA 18-4) 1. Klinika kozhnykh i venericheski-kh bolezney Moskovskogo oblastnogo naiichno-issledovatellskogo klinicheskogo instituta imeni Vladilhirskogo (dlr. P.M.Leonenko) i Inatitut virusologii imeni D.I.Ivanovskogo (dir. - dey,stvitellnyy chlen AMN SSSR prof. V.M,Zhdanov) AMN SSSR. IFERKAN, B.M., kand. tekhn. nauk;-RDGAYLIN, M.I.; FEREEROV, I.L. doktor tekhn. nauk. Investigating the vapor decomposition process in coal channels. Pedism. gaz. ugl. no.4,-7-9 158. (MIRA 11:12) l.Institut gor7uchikh takopayemykh im. G.M. Krzhizhanevokogo " SSSR. (Coal gasification, Underground) DERMAN, B.M.; ROGAYLIN, M.I.; FARBEROV, I.L. Study of the relation between the concentration of water vapor and the rate of its reaction with carbon* Trudy IGI 13:33-38 160. (MIRA 14:5) (Coal gasification) (Water Tapor) --- AADLWIER~ DERMANI B.M.; ROGAYLIN, M.I.; FARBEROV, I.L. Kinetics of the process of Interaction of carbon with steam. Trudy IGI 16:151-155 161. (1,4RA 16:7) (Carbon) (Steam) (Chemical reaction, Rate of) - M DERMAN, B.M.; ROGAYLIN, M.I.;.FARBEROV, I.L. Change of the internal surface of electrode carbon during its reaction with steam. Trudy IGI 16:156-158 161. (MIRA 16:7) (Electrodes, Carbon) (steam) CHEN LU-SHEN; ~OGAYLIN, M.I.; FARBEROV, I.L. Interaction of steam with coke obtained from Lisichansk coal. Trudy IGI 16:159-163 161. (MIRA 16:7) (Coal gasification, Underground) (Steam) ROGAYLINI V., vrach Skin care of the face and hands. Okhr. truda i sots. strakh. 6 no.5:22 My 163. (MRA 16:8) (Skin-Care and hygiene) --- I ROGAYLIN, V.I. I --- - "" ~-- ~-- ... Citral therapy of males with trichamonal urethritis. Urologiia no.6:41-44 164, (MIRA 18:11) 1. Urologicheskoye otdeleniye (zav. V.I.Rogaylin nauchnyy rukovoditell - dotsent A.A.Pomerantsev [deceasedl) polikliniki No.2. Moskva. ROGAYLIN'. V. I. Skin surface pH changes under the -influence of acetone, benzine and wHte spirit. Vest. derm. i ven. 37 no.5:20-25 MY 163. (MIRA 17:5) 1. Dermatologicheskoye otdeleniye (zav. - prof. A.P. Dolgov) Instituta gigiyeny truda i profess--',onallnykh zabolevaniy (dir. - deystvitel'nyy cILlen AI-IN prof. A.A. Letavet) AMN SSSR. ROGAYLITI, V. I. Compound therapy of males infected with trichomoniasis. Uro- logiia no.6:36-40162. (14IU 16:7) 1. Iz urologicheskogo Otdeleniya (zav. V.I.Rogaylin) poli- kliniki no.2. Moskva. (THICHOMONIA31S) (URETHRitr-DISUSES) ROGAYLIN., V. I. (Hoalwa) Treatment of trichomoniasis in men. Felld. i akush. 23.no.3:17-18 mr 162. ,Ill RA 15: 4) X (TRICHOMONIMIS) ROGOVIN9* Z.A., red.; ROGAYLINA, A.A. v red.; *SHPAK'p Ye.G. v tekbn.red. [Progress in the chemistry and technology of polymers; collected works] Uspekbi Irbinli 1 tekbnolog14 Dolimeraw; abornik, Pod red, Z.A.Rogovina. Naakvaq Gos.naucbuo-te,bn*izd-va kbim.lit-.a7t 1960. Vol.3. 1960. 210 p. (KM 34s7) 1. Toesoyamwye Irbluicbeakoye obababeafto Ineni DaIeNendelayeva. TSMIUTA, Teydzi LTSuruta, Teijil, dots.; OVECHK114,M.K.[translator1; SERGEYEV, A.F., red.; ROGAYLINA, A.A., red.; KGGAN, V.V., tekhn. red. [Preparation of synthetic polymers] Reak-tsii polucheniia sintetichesl.--ikh polimerov. Pod red. A.P..Sergeeva. Yoskva, Goskhimizdat,, 1963. 196 p. Translated from the Japanese. (MIRA 17:1) 1. InzhEnerno-tekhnicheskiy fakulltet Kiotskogo universiteta, Chlen Obshchestva po issledovaniyu polimerov i chlen Yapon- skogo knimicheskogo obshchestva (for TSuruta). (Polymers) (Chemistry, Organic-Synthasis) TAGDI, Anna Aloksandrovna. Prinimali uchastiye: TSVANKIN, D.Ya.; DORISOVA, T.I.; BURSHTEYN, L.L.; SLINKIN, A.A.; DULOV, A.A.; MIKHAYLOV, G.P., red.;__MW~4~!A A red.; SHPAK, Ye.G.p ~, teklin. red. [Physical chemistry of polyme"I polimerov. Moskva, Goskhimizdat, 1963. q2 'p. (MIRA 16:12) (Polymers) PIK, Iosif Shepshelevich; PQRZf11TSK1Y, I.I., red.; ROGAYLINA, A.A.P red. (Fress-moulded cast and formed plastics; a handbook] Pressovochnye, litleirye i podelochnye plasticheskie massy; spravochnoe posobie. Moskva, Khimiia, MI.- 379 P. (MIRA 18-1). 1 WSEV, lvan Platonovich [deceased]; THOSTIANSKAYA, Yelena Borisovna; ROGAYLINA, A.1 - . -ed . - I . [Chemistry of synthetic polymers] Khimiia sinteticheskikh polimerov. 2. izd. Moskva, lzd-vo "Khimiia," 1964. 640 p. (MIRA 17:7) 11 ST~WIKHEM, Aleksandr Aleksondrovich Ldeceased 1; DEMITSKAT-A, Tarvara Andreyevne; ROGATLINA, A.A., red.; KOGAN, T.T.. tekhn.red. ------- [Principles of the chmmistry of macromolecular compounds] Osnovy khImII vysokomol9kti3Aarnyk)i soe'dinenil. Moskva. Gos.nauchno-takhn.izd-vo ichim. lit-ry,,1961. 354 p. (KMA 14:5) (Macromolecular Compounds) ~ ~ t , D " ~ P, j 1; CM auka '~,'hy (lid th-o scientists die who entered the TutenYliamon t , b. N I tokh mlade:~h no.8-16-18 Ag 157. -;. i ROG ZY, S. ,-w method of surger7 in the treatment of urinary incontinence w-nen: ",sell& plastica". Cesk. gyn. 28 no-59332-336 Je .163- ,br.-gyn, odd. OUNZ v Dun. Strede, veducl MUDr. S. Rogeezy. (URINARY INCONTINENCE., StRESS) , (FASCIA) (TRANSPLANTATION) .(GYNECOLOGY) ACCFZSION Nils APJ4034051 S/0126/64/017/004/0527/053$. AuTHoR51 Gilldengornp Is Sol Rogellbergp I* L. e study of high-temperature oxidation of nickel-silicon alloys TITLE: Th SOURCE: Fizika metallov i metanovedeniyep ve 17, no. 49 19649 527-535 TOPIC TMSt nickel silicon alloys high temperature oxidations alectronographyp oxide f ormations thermocouples adhesion/ H1 brand nidcelp KrO brand silicons URS i 501 radiographic apparatus# ADY 200 bala-ce ABSTFACTs In this work the kinetics of oxidation of alloys of Ni with 0.9-6.4% by wt of Si were studied at temperatures of 1000s 1100,, anct 1200C. On the basis of electronographic, and radiographic investigations or the phase properties of the oxide layers it is shown that alloying of Ki with Si increases the cinder resistance of Ni and that this is due to the formation of S'02 in the suboxide I layer., The alloy was prepared from HI brand nickel (Ni >,, 99,94%) and Kr0 si3jeon',-.'-- (Si >/ 90%) in a high-frequency induction furnace in magnesite, crucibles using nose argon at a pressure 1 atme The ingot (450 g wt) was rolled to a thick of 0.4 mm. From these cold rolled bands specimens 25 x 60 = were cut* These specillen war then poliahed with a paper No. 2/0, degreamed In bamene md in acetonep and'!' ~72 Card AGGESS1011 NRs AP4o34o51 stored in*& dessicator witil, testsde The rate of coddation In the process of ~f isothermal exposure was determined by periodically weighing the specimens using a balance of the type ADV-200, The temperature during oxidation was maintained to an accuracy of + 5Ge The oxidation proceeded in air at atmospheric pressure for 10 hrs at 1006-and 110W and for 10 and 50 bra at 1200C. The phase properties of the oxide layer were studied with the aid of radiographic apparatus of the type -501 and by electronographic methods. The results of the experiments showed RS U that the addition of silicon increased the cinder resistance of Ni in the process, of oxidation at temperatures of 3OW-120OCe The cinder resistance of alloys with, 5-7% Si was considerably higher than that of pure Ni, The kinetics of oxidation in the majority of cases obeyed an approximately parabolic laws The basic factor! influencing the oxidation appeared to be the formation of a surface of NiO-SiO2 ~;i alloy. The adhesion properties of the oxide film on alloys with 2.6 to 6,h% si were leas than the adhesion properties of the film on pure Ni or low-alloyed NIO With increased time of exposurep the adhesion of the oxide layer had a tendency to increases Orige art* hass 6 figures and 4 tabless J ASSOCIATIONs Inatitiat glyrotevetastobrabotka (Institute of Nonferrous Metallurgy) I suBmanizi ohmar63 ENGL# 00 50 CODEs M NO R1W SOV 1 002 01=8 009 ' .2/2 Card 'ACCESSION NR: AP4040499 S/0136/64/000/006/0066/0071' ..'AUTHOR: Volkogon, G. M.; Rogel'barg, 1. L. ,TITLE& Effect of certain elements on nickel dtictilLty at high t*upera-!, ;tur'es .-SOURCEt Tavetny*ye metally*. no. 6, 1964. 66-71 ~TorlC TAGS: nickel, nickel hot shortness, alloyed nickel, nickel .!ductility, alloyed nickel ductility, nickel alloy, alloy hot shortnesse alloy hot ductility, alloy ductility, nickel magnesium alloy, nickel c'alclum alloy, nickel strontium alloy, nickel titanium alloy, ntekel :!zirconium alloy, nickel hafuLum alloy, nickel boron alloy, nickel ilanthanum alloy, nickel cerium alloy ;ABSTRACT: The effect of alloying elements on nickel ds-.--tlLty at ~:temperatures of 20-550C, 550-950C, and 1000-IIOOC jeen Luves- !tLgated. Unalloyed nickel is brittle at 400-950C, and especially at, 1800C. Alloying with lithium increases ductility at 400-800C; reduc-1 ation of area reaches 30Z at O..I%*Li. At 1000-IIOOC the ductility of .nickel alloyed with Ll in very high, and the reduction of a-rea is ;90-1 OZ. Magnesium, calcium, and strontium at low contents incrssss~ -03- 4CCESSION NRs AP4040499 ;the ductility at 550-95OCobutatcontmft of 0.2-0,3% NX or 061Z Ca or Sr have an adverse effect. Beryllium has no effect on ductility at',' :500-900C, but has a beneficial-effect at high temperature. Boron, in ~the amount of 0.02-0.05Z, increases the ductility, especially at ~550-950C. However, beryllium at contents over 0.05% makes nicklel brLWs :at all temperatures. Aluminum worsens hot shortness of nickel, espe-. cially at higher contents* Lanthanum-group metals (La, Ce, Pr) Iuprove`~ !ductility at all temperatures, provided their content Is below :0.053-0.072%. Titanium, zirconium, and hafnium ham a beneficial of f a=',*:'; ;at 500-900C. Titanium has a weaker effect than zirconium and hafnIum,'7..,,; :and an excess of it does not affect the ductility* Vanadium, tantaluu,~ .,. :phosphorus, chromium,'molybdenum, and tungsten decrease the ductili ty ,eapecially at low temperatures. Manganese and rhenium have no bene- ji, :ficial effect, even if added in considerable quantity. Rhenium, at loir.-' contents, widens the range of hot shortnesse It follows, therefore, that Li, Mg, Ca, Sr, B, Ce, Ti, Zr, and Hf increase the ductility and ,eventually eliminate hot shortness in nickel completely. Tito above elements apparently have a high affinity to sulfur (whiah ts.the main cause of nickel brittleness) and their sulfides have a high melting point. Lithium Is the strongest modLfIer; It eliminates columnar-, Card 2 / 3 ACCESSION NRt AP4040499 6tructure and substantially reduces grain sizes TI, Ce, Ca, Zr, 'and Mg have much weaker grain-rafining effect. Orig. art. hass I figure:'~'," and 1 table. none SUBMITTED: 00 DATE ACQi 06Jul64 ENCLs 00 'SUB CODgt KK NO REP SM 009 OTHERs 004 :ATD PRESSt 3041 Card 3/3 BEZEKOVICH~;KHAITDROS, S.A.; ITOVIKOV, I-IL%,-_ROGEL'BERG, I.L. Effect of initiai structure on grain growth during the collective recrystallization of brass. Trudy Gipzotsvetmetobrabotlm no.18: 194-126 160. (MIRA 1.3-.10) (Brass-Metallography) (Crystallization) ROGELIBERG, I.L.; SHPICHINETSKIY, Ye.S.; BARANOTA, L.M.; MHKOV, B.I. Technolog7 of manufacturing and propetties of nickel-tungsten alloys in connection with their use for the manufacture of filamentar7- cathode tabes. Trudy Giprotsvetmetobrabotka n0-18:233-242 160. (MIRA 13:10) (Nickel-tungsten alloys) (Electron tubes) ROGILIBERG, I.L.; SHPICHINITSKIY, Ye.S.; AGAFONOV, A.1i; PUCHKOV, B.P. L-- Some properties of oxygen and sul-far-bearing nickel for anodes. Trudy Giprotsvetmetobrabotka no.18:243-253 160. (MIRA 13:10) (4ickel-Metaliography) (Electrodes, Nickel) 3 8.1215,18-7200 77 5 92 SOV/129-6o-2-5/13 AMORS: Ralchshtadt, A. G., Rogellberg, I. L (Candidates H of Technical Sciei-icZ~-s-),,---Vorob-lyeva~-.-~L-P., Puchkov, B. I. (Engineers) TITLE: Effect of Heat Treatment on Properties and Structure of Beryll1wn Bronze PERIODICAL: Metallovedeniye i term1cheskaya obrabotka metallov, 196o, Nr 2 pp 20-31 (USSR) ABSTRACT: Beryllium bronze possesses elastic properties, high corrosion resistance, and adequate electric conductivity. It is us.ed for the elastic elements of instruments and devices. Inasmuch as previous works failed to study the elastic properties of this bronze, the authors investigated elastic and re- laxation properties of the bronze prepared in the form of thin strip. The modulus of elasticity was de- termined by the dynamic method according to the Card 1/10 frequency of resonant-type vibration of a cantilever Effect of Heat Treatmeriton Pvoperties 77592 and Structure of Beryllium Bronze SOV/129-6o-2-5/13 specimen. Elastic limit was determined by means of lon.7itudinal bendincr of the specimen accordin,,T, to the method described in Rakhshtadt, A. G., and Shtremel 1, M. A., Collection MVTU Imeni BaLunan, Physical Metallurgy and Heat Treatment, Mashaiz, 1955. Residual elongation of the external fiber was calculated by formulas of Ye. P. Popov (Popov, Ye. P., Theory and Calculation of Flexible Elastic Parts, Publishing House IKVVIA, 1947). Permissible residual deformation in determining elastic limit amounted to 0.001 to 0.01%. Relaxation characteristic was de- ' termined on the strip bend around mandrels of various diameters. The following types of bronze were in- vestigated: (1) Br B2 (Be, 2.07; Ni, 0.2%);(2) Br B2.5'(Be, 2.5b; Ni, 0.31%);(3) Br BNT (Be, 1.9 to. 2.02; Ni, 0.32; T, 0.19%). For this purpose, 10-kg ingots 40 mm, thick were hot-rolled at 600-8000 C into 4.5 mm thick*strip with maximal reduction of 20-30% Card 2/10 I Effect of Heat Treatment on Properties 77592 and Structure 3f Beryllium Bronze SOV/129-6o-2-5/13 per pass. Rolled strip was hardened from 8000 C (holding time I hr and water quenching). After C~ C3 picklin,-:1, specimens were cold-rolled and hardened accordin- to the above rates at strip thicknesses of 3, 1.5., and 0.7 mm. Then, the strip was rolled to 0.6, 0.43, 0.33, and 0.30 mm thickness. Subsequent 'Y6 the specimens were hardened in water from 780 to 790 C and rolled to an identical thickness of 0.3 mm; i.e., with reductions of 50, 30, and 10% and without deformation. Hardening from 780 to 7900 C (holding for 10 min and water-cooling at 200 C) was done, since such heating brings about a sufficient con- centration of beryllium in alpha-solution and fine grain structure (10-15 4 grains). Mechanical and physical properties of the above bronze specimens corresponded to those given in literature for bronzes containing 2 and 2.5% Be. Figure 2 shows changes of elastic properties hardness, and electrical-resistance of bronze Br B2.5 under the effect of temperincr. Card 3/ 10 Similar figures are given in the paper for the other two types of bronze. Effect c' Heat Treatment on Properties and Structure of Beryllium Bronze 77592 SOV/129-6o-2-5/13 6%2 f to - so 60 40 1~" 40 - ,~Xoi I flow 20 rZow IZVCOI 0 1 1 1 407 Q07 005- .205 #v Hv fro 300 2061 -- 1OU .0 M .90 Y20 150 r,".-w 0 5- 10 15 20 25 ;Z. See Card 5/10 for captioll. Card 4/ 10 IF,Cfedt of Heat 'Preati-itent on Properties and Strioctiire (-X 13-1 o n,-., e 775-.92 S 07/1 0_9 - 6 0 - 2 - 5/13 Caption to Fig. 2) on Card 4/ 10 Fig. 2. Chanrj,,*e of elastic properties, hardness, and electrical resistance oC beryllium bronze Br E-2.5 aftc- tempering. (a)- at 3200 C; ------ at 350' (b) at-3700 C. cTel, elastic limit; E, modul 3 of elasticity; P, electrical resistance, o h_m - min ff Vickers hardness; subscripts at IT1 (TO. 005' "'0.0021 "'0.011 residual deformation. Card 5/10 Bronze Br alT 1.9 has a higher elastic limit than the cther two types of bronze. It also exceeds that in- dicated in Richards, J., Materials and Methods, Vol 31, Nr 11, 1950, and in some Soviet references. This may be ascribed not only to a different method of investiga- F ECI'ect of' "Ireat Treatment on Propoi'Lleo 715,192 ard Structure of Beryllium Bronze SOV/'129-6o-2-5/13 tIon but also to the use of thIn strip with a highly homogeneous structure. The rate of relaxation at the initial stress equal to elastic limit- (a 4- CT 0 0.005 is higher after temuering at 320 C for 3 hours than that after tempering at 3500 C for 1 hour or at 3700 C for CD 20 mimites (see Fig. 7). Effect of Heat Tr-eatment, on ProperUes, 77592 and Structure of Beryllium Bi-onze SO'V/129-6o-2-5/13 Fig. 7. Change of stresses as 70 7 the result of' relaxation of 1 0) be y111.um. bronze at 200 C after 1&4#2 1 hardening and tempering, (a) 3200 C, 3 fir; (b) 3500 C, 1 hr, 65 (c) 3700 C, 20 min; (d) 3500 C after reduction of 30%. 70 69 C M Z 10 69 0 25 50 oui~ATIUN oF TEST 63 67 70 X,,/ F9 66 Card 7/ 10 Effect of Heat Treatment on Properties 77592 and Structure of Eerylli= Bronze SOV/129-6o-2-5/13 -r hardenino, strenathens Plastic deformation followin 's T n i the bronze and Increases its elastic limit and hardness, but affects the modulus of elasticity only slightly (see Fig. 9). get A qv - -- - Fig, 9. Change of elastic do properties, hardness., and electrical f 60 resistance of oeryllium bronze 1000140 1 FI I-1 11 r 2.5 after hardenit cold plastic deformation reduction 17000120 30%), and temperingt' at 300,0 C) ---- at 3500 C. o08 0,06 HV 100 100' 0 J10 60 so 120 /110 180 ?Ior'Nov Card 8/ 10 Effect of Heat Treatment on 'Properties and Structure oV Beryllium Bronze 77592 SOV/129-6o-2-5/13 As a result of this study the followinE.- conclusions have been made: (1) heat treatment and plastic deformation drastically affect elastic properties and structure of beryllium bronze; (2) tempering at 350-3700 C increases elastic limit and modulus of elasticity of hardened bronze reaches Its maximum with a holding time of I hour at 3500 C and 20 minutes at 3700 C; (3) bronzes containing 2 or 2.5% Be behave identically in regard to strengthenlnZ. Additions of Ti br-Ing about a futher increase of the elastic limit; (4) bronzes with 2.5 and, particularly, with 2% B~--- are characterized by nonuniform microscopic decomposition in tempering with higher rates. of decomposition along grain boundaries; (5) deformation of hardened broaze changes the state of initially hardened solid solution only with high reduction (30 and 50%); (6) tempering of hardened beryllium bronze subjected to plastic deforma- tion promotes the value of elastic limit (0-0.001 Card 9/10 Efl'ect of Heat Troatment on Properties 77 592 and StIUCtUre of Beryllium Bronze SOV/129-060-2-5/13 100 kg/mm2). There are 10 figures; 11 tables; and 38 references, 22 Soviet, 12 U.S., 2 German, I U.K.j 1 French. The 5 most recent U.S. and U.K. references are: Kelly, A., Acta Metallurgica, Nr 8, 1958; Richards, J., ASTM, Spec. Tech. Publication, Nr 129, 1952; Richards, J., Materials and Methods, Vol 31, Nr 4, 1950; Beck, P., Journ. Appl. Physics, Vol 201- Nr 7, 1949; Friedel, J., Phil. Magazine, Vol 44, Nr' 351, 1953. ASSOCIATION: Moscow Higher Technical School imeni Bauman (MTTU Imeni Baumana), State Design and Planning Scientific Research Institute for Work-Ing of Nonferrous Metals (Giprotsvetmetobrabotka) PUCHKOV., B.I.; RAKHSHTADT, A.G.; ROGELIBERG, I.L.; SOKOLOVA, I.M. Effect of plastic deformations and heat treatment on the anisotropy of beryllium bronze hardening and recovery. Isel. splav. tavet. met. no.4:22~4-232 163. (MIRA 16:8) (Beryllium bronze-Hardenii) (Deformations (Mechanics SHPICHINETSKIY, Ye.S.; ROGELIBERG I.L.; LUZENBERG) A.A.; GOLOMOLZINA, Yu.A. AGAFONOV., A.K.; Fjr!=2!1Uchastiye: MIZONOV, V.M.; GAUKTIONOVA, G;A.; GAVRILOVA, N.G.; SAI.ZONOV, I.P.; KOPEM, E.I.; GLEBOV, V.P. Investigating th, darkening of nickel strips during anneali", Trudy Giprotsvetmetobrabotka no.20:125-135 161. MIRA 15:2) (Nickel--Heat treatment) (Annealing of metals) PUCHKOVP B.I.; RAKIISHTADT, A.G.; ROGELIBERG, I.L. Characteristics of the hardening and recovery of nickel on the re- sults of cold plastic deformation and annealing. Fiz. met. i me- talloved. 16 no.5:781-786 N 163. .(MIRA 17:2) 1. Gosudarstvennyy.nauchno-isoledovatel'skiy:,i proypktnyy institut obrabotki tsvetnykh metallov i KDskavskoy6 V*Yssheye tekhnicheskoye uchilishche im. Baumana. S/136/62/ooo/006/001/005 E073/E435 AUTHORS: Puchkov, B.I., Rakhshtadt, A.G., lo _I gellbez~&j_ I-L- TITLE: Anisotropy of the limit of elasticity of commercial spring alloys I copper PERIODICAL: Tsvetnyye metally, no.6, 1962, 67-70 TEXT: The results are given of measured values of anisotropy of the'elasticity limit of 0.35 mm thick sheets of bronzes,'branses, and German silver of the following compositions: "Br.A7): 7.68Q,!O' Al, 92.20'10 Cu, 0.05%) Fe; Go-ou 4-3 (Br.OTs 4-3):4.14% Sn, 3.02% Zn, 92.74% cu, 0.02% Fe; A'85 (L85)- 14.96% Zn, 84-78% cu, o.oW Fe; M --L~65-15-20 (1,1NTs 65-15-20): 19.800% Zn, 15.10'A'Ni, 64.71% Cu, 0.08% Fe. All the alloys were investigated after work 'hardening (rolling with a reduction of 57%) and after annealing at a temperature below the recrystallization temperature. The limit of elasticity was measured by cyclic loading during longitudinal bending. In the work hardened state there is a pronounced anisotropy of the limit of elasticity, the magnitude of which is much higher in the Card 1/3 Anisotropy of the limit ... S/136/62/ooo/oo6/001/005 E073/E435 direction transverse to rolling (a,.l) than in the direction of rolling (0 The ratio a I1/a'l I varied between 1.10 and 1.90. e e The respective values of the ratio of the moduli of elasticity varied between 1.0 and 1.2; no correlation was detected between the limit of elasticity and the modulus of elasticity. After low (below recrystallization) temperature annealing the limit of elasticity of the investigated materials (with the exception of tin bronze) increased aporeciably whereby the increase was greatest in the direction of rolling and least transverse to the direction of rolling. Thus, the anisotropy diminished after low temperature annealing. In the tin bronze, low temperature annealing did not reduce the anisotropy of the limit of elasticity.: Thus, low temperature annealing does not only improve the elastic properties of tinless bronzes, brasses and German silver but also reduces the anisotropy of their elastic properties. The authors atzribute the anisotropy to the distribution of dislocations and the associated field of oriented microstress. The relatively small change in the anisotropy of the limit of elasticity of tin bronzes as a result of low temperature annealing is probably Card 2/3 S/126/62/013/005/013/031 E193/E483 AUTHORS: Puchkov, B.I., Rakhshtadt., A.G., Rogellber-, I.L. TITLE; A study of the effect of deformation and annealing on the anisotropy of the elastic limit of the 7% aluminium. copper alloy PERIODICAL: Fizika metallov i metallovedeniye, V-13, no.5, 1962, 728-734 TEXT: In continuation of an earlier investigation carried out by B.I.Puchkov and I.L.Rogellberg (not, v.1o, 196o, 302) the present authors conducted a systematic study of anisotropy of the elastic limit (or, more precisely, of the 0.'005% proof stress)' of a copper-base alloy containing 7.1% Al, with particular reference to the effect of both plastic deformation and annealing temperature as well as the effect of repeated deformation and annealing. The experimental material was prepared by hot rolling 40 mm thick billets to 4 mm sheet which was then reduced cold to 0.35 mm with-intermediate.annealing at 700*C. The method described in Ref.4 (A,G.Rakhahtadt and Card l/ A study of the effect ... S/126/62/013/005,/013,103 E193/E483 M.A.Shtremell. Zavodskaya laboratoriya, V-30, no.6, ig6o, 744; Metallovedeniye i termicheskaya obrabotka metallov, sb.41, MVTU im. Baumana, 1955, 219) was used to determine 00-005 of specimens, cut from the cold-rolled sheet at an angle of 30, 45, 60 or 900 to the direction of rolling. The effect of the degree of plastic deformation (in rolling) on the*anisotropy of the elastic limit is demonstrated in Fig.1 where 00.005 (kg/mm2) is plotted as a function of the orientation of the test piece in relation-to direction of rolling, the vertical and hori- zontal ixes representing respectively, directions parallel and normal to the direction of rolling; the degree of plastic deformation is indicated by each curve. The effect of annealing (kg/mm2) of temperatuve is demonstrated in Fig-3, where 00-005 specimens given 50*1o' reduction is plotted against the annealing temperature (*C), curves 1 and 2 relating to values of 00-005 rolling, in the direction normal and parallel to the direction of respectively. The effect of some other factors,-on the anisotropy of the elastic limit is shown in Fig-7, where the vex-tical and horizontal axes represent again the directions Card 2/ S/126/62/013/005/013/031 A study of the effect ... E193/E483 parallel and normal to the direction of rolling and the various curves, showing the variation of 00-005 relate to specimens which had been given the following treatment: 1 - rolling to W% reduction; 2 - rolling to 505'a reduction followed by rolling in the transverse direction to 8% reduction; 3 - as in 2, Plus 30 min at 280%; 4 - rolling to 92% reduction? 5 - rolling to 92110' reduction followed by rolling in the transverse- direction to 8% reduction; 6 - as in 5, plus 30 min at 280%. Several conclusions were reached. 1. The plastic deformation- induced structural changes, causing anisotropy of the elastic limit of the alloy studied', can be fully eliminated by annealing the material below the recrystallization temperAture. 2. Anisotropy of the alloy annealed below the recrystallizati6n temperature can be fully restored by light plastic deformation. 3. Anisotropy of plastically deformed material can be substantially altered by rolling the material in the direction normal to the direction of the first rolling operation, even if only &.9mail. reduction (7%) is given in the second rolling operation. 4. Work-hardening of the a-loy-studied is very non-uniform, and Card 3/f A study of the effect S/126/62/013/005/013/031 E193/E483 even after very heavy reductions some of the slip system show no resistance to further deformation. The deformation- and annealing-induced changes in the anisotropy of the elastic limit of the 75% Al-Cu alloy are associated with a change in the magnitude and mode of distribution of oriented micro-stresses caused by redistribution of the dislocations. There are 7 figures an d 1 table. ASSOCIATION: 'tGiprotsvetmetobrabotkall MVTU im. Baumana. SUBMITTED: February 8, 1961 (initially)- December 11, 1961 (after revision) FUCHKOV, B.I.; RAKHSHTADT, A.G.; ROGELIBERG, I.L. Investigating the effect of deformation and annealing ., on the anisotropy of the elasticity limit in an alloy of copper with 7-percent aluminum. Fiz. met. i metalloved. 13 no.5:728-734 My 162. (MIRA 15: 6) 1. "Giprotsvetmetobrabotka"., i Moskovskoye vyssheye tekhnicheskoye uchilishche imeni Baumana. (Copper-aluninum alloys-Testing) (Elasticity) S/680/61/000/020/007/013 D258/D302 AUTHORSg RoGellberG, I. LO) Shpichinetskiy, Ye. S., Puchkov, B.I. Th-T-T-i-t-ova-, A.--S. TITLE: Nickel alloys of high electrical resistivity for cathode filament bases in radio tubes SOURCE: Moscow. Gosudarstve-myy nauchno-issledovatellskiy i pro.- sektnyy institut obrabotki tsvetnykh metallov. Sbornik .nauchnykh trudov. no. 20, 1961, Metallovedeniye i obra- botka tsvetnykh metallov i splavov, 1,17-124 TEXT: The present work was aimed at developing Ni alloys suitable for the manufacture of filament bases in the so-called 'economical' radio tubes. Suitable alloys were required to possess electrical resistivities, of 42 microohms-em at room temperature and )f 114 microohm-cm (at least) at 8500C. 84 different alloys were prepared by quickly melting the charges in a high-frequency furnace. The products were subsequently reduced with C and Mg, poured in gra- phite forms, water-quenched from 11000C, then rolled, annealed at 01 ra r (1 1 / -~ S/680/61/000/020/007/013 Nickel alloys of ... D258/D302 800 - 8500 C and finally drawn, with softening, into 0.5 mm and 2 mm wires. After a heat-treatment at 8000C, the wires were tested for tensile strength (on 2 mm wire, at room temperature and at 8500C) and electrical resistivity (on 0.5 mm wire, at 20 - 9500C). The re- -istivity at high temperatures was measured under a pressure of 10-4 mmHg on electrically heated sample spirals, 5 mm in diameter, made from 1--meter wires. The following systems were investigated: Ni-Co; Ni-Fe (with up to 8% Fe); Ni-Ti; Ni-Fe-Ti; Ni-wCo-.Ti; Ni-Co- Fe-Ti, with and without additions of either Al, Si, Mg or Mo; and Ni-Fe (with 40 to 50% Fe) with small amounts of either Ti, Al or Si. Oniy the last series was found to satisfy both electrical and mechanical. requirements. A survey of the other systems showed that the electrical resistivity of Ni at high temperatures is greatly enhanced by the addition of up to 5% Ti; the addition of Mo en- hances the low-temperature resistivity only. The Ni-Fe-Ti alloys are recommended for use in cathode bases, in view of their good electro-resistivity and mechanical strength and also because of V/ Card 2/3 S/68 61/000/020/007/013 Nickel alloys of ... D258%302 their marked plasticity. There are 3 figures, 2 tables and 2 So- viet-bloc references. Card 3/3 53- M 17 S/680/61/000/P20/008/013 D258/1002 AUTHORSg Shpichinetokiy~ Ye. S., Rogellberg, L, ~p, Luzenberg, A. A., Golomolzina7 Yu.*A. and Agafonov, A. K. TITLE: Investigating the darkening of nickel strip due to an- nealing SOURCE: Moscow. Gosudarst-vennyy nauchno--issledovatellskiy JAI pr3- yektnyy institut obrabotki tavetnykh metallov. Sborn'lk nauchnykh trudov, no. 20, 1961. Metallovedeniye i obra- botka tsvetnykh metallov i splavov, 125-135 TEXT,. The authors investigated the effect of composition and of various technological factors on the occasional darkening of nic~kel strip (grades HnZ (NP2) and MK09,(NK02)), occurring after heating for 4 hours up to 780 - 8000C. annealing for 3 hours and cooling to room temperature over 8 - 10 hours. Darkening was due to the -5 6 formation of a strongly adhering 10 10 cm thick film which was found to consist of carbon. The effect of composition on dar- Card 1/ 4 Investigating the darkening S/680/61/000/020/008/013 D258/D302 kening was investigated on thinly rolled samples o-"L*' darkened strip; the specimens were electropolished and reheated in vacuo. They were then slowly cooled or quenched from 7800C. Films were formed on all slowly cooled specimens with more than 0.04% C and 0.04% Si, but not on quenched specimens. Microscopic study showed that gra- phitization usually started from the crystal boundaries. The in- dividual effect of C and Si on darkening was studied with samplee annealed 14n vacuo and containing 0. 02 - 0.2% of C7 Si, Mg and oth- er reducing agents. With samples containing C alone. the darkening occurred at 0.07% C and more; the presence of Si raised the con- centration 'Limit by 0.01%. The effect of lubrication on darkening was studied by coating samples with transformer oil prior to an- nealing. The presence of oil enhanced darkening in samples con- taining more than 0.04% C, while it had no adverse effect on sam- ples with lesser concentrations. The chemical analysis of 253 Plant-annealed rolls showed that no darkening occurred in rolls containing 0.02 - 0.03% C, -while 0.06% C caused intense darkening; the total concentration of reducing agents was, qualitatively on- C a. r d 2,,,/4 V S/68 61/000/020/008/013 Uing the darkening D258 302 Investigai % ly, related to the extent of darkening. Application,of various oils in plant conditions always resulted in darkening; yet the removal. of -these oil.s,, prior to annealing, had little effect on preventing it. No dependence could be established between the Composition of fu-rnaoe gases and the extent of darkening. No change was observed, on substituting hydrogen or water vapor to air in the furna,~e space, or on annealing in vacuo at 10-3 mmHg. The latter treatment even enhanced darkening. The laboratory treatment of quenching showed equally good results when applied in plant practice. Thus, rolls of nickel strip were cleaned, thinned, packed in Ni and Cu foile, heated for 3 hours at 7800C, and quenched in water. Only ~wo out of ten quenched rolls.showed traces of darkening in their midd- le portions. Finally, Ni strip was annealed by continuously passing it through an electrical furnace, under hydrogen, at 8500C, at a rate of 3 - 5 m/min..This treatment completely prevented the oc- currence of darkening, provided the strip was-quenched immediately on leaving the furnace. The film is assumed to be formed as a re- sult of the decomposition of a supersaturated Ni-C solid solution. The authors assume that in the course of annealing, carbonized oil. Card 3/4 S/68 61/000/020/008/013 Investigating the darkening D258%302 diffuses into the metal and is taken up to the limit of C-content in the solid solution at 8000C (0.13% C'. There are 4 tab"les, 5 fi-- guree and 5 references: 3 Soviet-bloc and If' non-Soviet-bloc. The referetices to the English-laiiguage publicationo read as follows,~ Metals fluridbook, Nickel-Carbon, p. 1183, (1948)~ J. J. Lander, H. E. Kern and A. L. Beach, J. Appl. Plkys., 23, 12, (1952)., 3-)h6q J_ . S/129/62/000/001/010/011 E193/1083 Candidates of AUTHORS. RakhshtAdt, AoGa, Ro ellbe Technical Sciences and Puchkov, B.I., Sveshnikova, G.A., Engineers TITLE: A study of methods of increasing the strength of copper-base spring alloys PERIODICAL: Metallovedeniye i termicheskaya obrabotka metallov, no4 1, 1962, 45 - 56 TEXT: The object of the investigation described in the present paper was to carry out a systematic study of the effect ol mechanical and thermal treatment on the mechaikal properties of several copper-base alloys. These include4: J185 (L85) (84.67% Cu, remainder Zn); 9 80 M80) (79-18% Cu, remainder Zn); ~.n 68 (L68) (67.26% Cu, remainder Zn); SP ()~6.5-0-15 (Br.OF6.5-0-15) (6.4% Sn, 0.20% *P); 6p.01 4-0.25 (Br.OF4-0.25) (3-56% Sn, 0.28% P); Sp.OL~ 4-3 (Dr.OT84-3) (3-94% Sn, 3.1% Zn); 6p-FV (Br.A~ (7.63% Al); F;_p.KMLQ-l (Br.Mts-,~z-l) (2.82% Si, 1.15% Mn); MW_~ 15-20 (MNTsl5-20) Card JL/-I-O-- 33467 S/129/62/000/001/010/011 A study of methods of .... E193/E383 (65.19% Cu. 14.75% N!, remainder Zn). The alloys were melted in an induction furnace and the ingots,after two hot-rolling operations, were cold-rolled with intermediate anneals, the last anneal being carried out on sheet 1.5 mm thick. This was cold-rolled to the final thickness of 0.75, 0.5 or 0.375 mm- The mechanical properties were measured both on cold-rolled material and on specimens subsequently heat-treated. All the tests were carried out two months after the completion of thermal and mechanical treatment. The results can be si-marized as follows. 1) Cold plastic deformation increases the hardness, elastic limit, elastic modulus and electrical resistance of all the alloys studied; this effect increases with increasing degree of cold-working and is associated with an increase in the dislocation density, formation of stacking faults and a change in the atomic structure of the alloys. Regarding the effect of alloying additions on the work-hardening characteristic of copper, tin has been found to be more effective than aluminium, silicon or zinc. Card 2/10- 33467 S/129/62/000/001/010/011 A study of methods of .... E193/E383 2) An additional increase in the mechanical properties, affected by cold plastic deformation, can be obtained by a low-temperature treatment carried out below the recrystallization temperature. The higher the degree of work-hardening, the more pronounced is the effect of this treatment. The changes brought about by cold-working alone or combined with low-temperature annealing are exemplified by the results obtained on aluminium bronze (alloy A7). These are reproduced in Fig. 16, where the 2 increment of the elastic modulus ( AE, kg/mm ), elastic limit 2 (%pr . kg/mm ), Vickers hardness (HV) and electrical resistivity 2 SLmm /m) are plotted against the degree of cold deformation (%) without and with subsequent low-temperature annealing (continuous and broken cirrves, respectively); instead 0f'the true elastic limit, the values of 0.002, 0.005 and 0.01% proof stress ('0.002' '0.005 and respectively) are plotted. The increase in the elastic limit brought about by low-temperature annealing can be attributed to the resultant Card 3/-1-0' 33h67 S/129/62/000/001/010/011 A study of methods of .... E193/E383 relief of localized stresses, eliminatio.- af point defects, diffusion processes associated with atomIc displacementsand redistribution of dislocations. 3) All the alloys studied in work-hardant;u- condition are anisotropic in respect of their elastic properties. This effect is evidently associated with anisotropic distribution of dislocations on the active slip systems. Since the increase in the elastic limit brought about by low-temperature annealing is not the same in all directions, anisotropy of elastic properties in material subjected to this treatment is practically non-existent. This is demo!istrated in Fig4 2, showing the magnitude of 0'0.005 (kg/mm ) in various directions, the vertical and horizontal directions corresponding to directiom parallel and normal to the direction of rolling; graph-& relates to specimens cold-worked to 60% reduction, graph Ca to specimens subsequently annealed under optimum conditions, as shown in Table 3; Curves I - 4 relate to I - L68, 2 Br.OF6.5-0-15, 3 - Br.KMts3-1 and 4 - MNTs 15-20. Card 4Ao- 33467 S/129/62/000/001/010/01.1 A study of methods of .... E193/E383 4) None of the alloys studied is in a stable condition after plastic deformation. Brasses, in particular, if loaded under conditions of stremb diff-arpnt from those obtaining during the-initial cold-working operation, suffer a decrease in strength. This effect is attributed to the destruction of atomic segregation brought about by the first plastic-defor- mation process. 5) The low-temperature treatment of work-hardened specimens of the alloys studied does not significantly increase their resistance to heavy plastic deformation, which indicates that the combined mechanical and thermal treatment does not bring about effective blocking of dislocations. It is for this reason that a sharp decrease in the elastic limit of brass and bronze A7 is produced when, after plastic deformation followed by low-temperature annealing, they are again plastt- cally deformed even to a very small degree. Consequently, parts madie of these alloys and treated in the manner described should not be stressed in service beyond the elastic limit. Card 5410- Y 33467 S/129/62/ooo/ool/m/on A study of methods of .... E193/E383 6) Low-temperature treatment of work-hardened alloys increases their relaxation stability. This is demonstrated by the relaxation (stress 0,, kg/mm2 versus time, hours) curves reproduced in Fig. 4 for -a - L68, ~ - L8o, C - L85, 7- - Br.OF4-0.25, a Br.OF4-3, e - Br.OF6.5-0~15, *-- Br.A7, a - Br.KMts 3-1, u - MNTsl5-20, Curves 1 relating to specimens cold-rolled to 60% reduction and Curves 2 to specimens subsequently annealed according to the schedules shown in Table 3. In addition, low-temperature treatment increases the stability of elastic properties of the alloys under conditions of cyclic loading. For instance, in the case of a cold-rolled specimen of MINTs alloy, subjected to 105 cycles under a stress of 22.8 kg/mm 2, the relaxation stress decreased after 36o hours from 57o5to 26o2 kg/mm2 ; in the case of specimens which after cold-working were annealed at Card 6/-io- 33467 S/129/62/000/001/010/011 A study of methods of .... E193/E383 300 OC for 3 hours the relaxation stress decreased under the same conditions to 38.0 kg/mm only; the elastic limit decreased by 5% in the former and remained constant in the latter case. There are 9 figures, 3 tables and 36 references: 30 Soviet-bloc and 6 non-Soviet-bloc. The four latest English- language references mentioned are: Ref. 14: 0. Izumi.- Journal of the Japan Institute of Metals, v.23, 1959;- Ref. 34: R. Feder, A. Novick, D.B. Rosenblat - Journal Appl. Phys., v.29, 1958; Ref- 35: Le-Claire, D., Lomer, M.M., Acta metallurgica, v.2, no.-11, 1954; Ref- 36: A. Cottrell, R.G. Stoks - Proc. Royal Soc., viA233, 1955- ASSOCIATIONS: MVTU im. Bauman Giprotsvetmetobrabotka Card 71,16 ,&Ir.w-f--- -- wfe-df-okfdad ion, Card 1/2