SCIENTIFIC ABSTRACT FR:KOSTYRYA, V.A. TO:KOSTYREV, A.P.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000825300043-6
• Release Decision: RIP
• Original Classification: U
• Document Page Count: 1
• Document Creation Date: November 2, 2016
• Sequence Number: 43
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTR

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

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APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

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BRAUN, Mikhail Petrovich; VTN4KUH.,.Bertol'd Bentaionovich; CHENNYY,
Viktor Gavriloviah; CHETtN0Y0L, Arkadiy Vasil'yevich; KfJSTY~G,
Ole Ste �,ALEKSANDRQVA, Natal'ya Pavlovnm; KRUK~'~~,
a na o ayevna~ TIKH~NOVSKAYA, I~risa Dmitriyevna; LYASTiENKO,
Lyudmila Alekaandrov~na; (~ I "EN, N. V. , kind. tekhn, nauk, cots'.
red.; POKRCVSKAYA, Z.S., red.; KADAS~i~VICH, G. A., tekhn. red.
[Alloys with addition slements~ Legirovnnnye splavy. (P~y~ M. T'.
Bra~ui i dr. Kiev, Izd~vo AN Ukr.SSR, 1963. 14?. p.
(MI RA. 16:8)
(Alloys-.-Metallurgy)
(Foundries---~:quipment and supplies)
APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138000825300043-6

.` xhe deve~.op~inei~~~of temper bxztt7,en.e~as �:. S./743/$~/OOO/C~41~OO7/OO$
~., a ,.,
.'brttlsr~ess an�~ fox $tee7, nt~t su~~.eetad t4 su+ch txeatmez~t. With inarea;sing ~pecrnsn
~_ ~a~~e the notch�ugh~e~s inars~ees ~~gnif~oant~y more intensely in the absence o~
xe~ersib~e temper hrter~s~~ n i~t ~t~ prss~nce. 'The. in~rsases in nat~h~ ,~
tou~hr~~~~ a~cu~ a~~~~+~~rig ~~ ~ l~ne~~ ~~~~. ~'~~ oh~~aot~x of ~~~ ch~r~g~ ~~' ttac cu~ve~
.and the appe~.ran~e ~f the fzact~xre dbe~ not $~xggest a displ~:cern+~nt of the critical
~~ transition ~empe~ature in ~~he br~~t3e e~tat~ toward. higher x's with incr~.asing spay
cim+sn ~ixe, xf we defsne ,the cold:-~ri~ttleness threshold as carx~espondax~g to a 5Q~o
. dscr~ase ix~ tou~hncss, then, the rz~agn~ttude of the said +brttleneas ints~rval
appx~xa~rr~atee 7~~G. .A ctzr~~arl~on.'W~~h tha pl~n~rnetrxc xn~tha~ yields sirnllax
results. The deperidenc~ a~ thc,'ar~p~ct woxl~ an. the. dsfoxmation characteristic db
bas a reotilin,~~z character. 'p~;e def~~r~atian chars.ctaristic ,Ab increz~ses ian magni-
fade vuith inGxeaaxng spscirnez~ si~e~ ~~bQtt~ xn the pzesence and in the absence of re-
vex$ible temper bxittle~ess. Thy "coc~'ficle�t o~ groportianality, ~=A~1 Lib, grows
in absolute value: with a growCh in sp~ciznen size;. however, the ratio K /x
' furnace water
`changes but in~%gnifi.cantly. There' axe 3 figures,- ~ tables, and 1~ rs;~erencss
,, ~ X10 Russian-language soviet, ~ Carea~rrian, ~ ~r~redish, and ~ English-language},
~ _ ;'.
.ASSOGII~I:T~4N': , ~xi-sttut 1,lteyn-ago .proixvodstva, AN ~TSSR (Xnstitute of C~.sting
~~' ~ `Productio~x, T31c~~SR}�
:.~ t`~ Ul })t_, t- ,i t)i. ' ~ F = `,n.,.Y 2 : , - ;"~ ,. k?1Ti _ ~ .. {,. ~l '+l i ~ l~. C:IIF+ x.11 L~
it~f ...'
C'Lt.li~~~.l.~~%r' G+rs':"i'~a::l3ti,~i :3.i:V1~~?.t~I�.I V3. ~` o ~ Tl ,u
~P~,''x~t3 rlihy~ i1t?!)~sm of Shrinkage i:n Sintering Br z.qu c=ties a f Ale~k: a.1. Powders
X00, '501 1. 000 and 1 1.00 oL are sl~~aEm :i,n Tat>l.e~ n,. Paro~fity
b e:for e and after pressing (at 2 0 2 ou� ~ , 4 t azzs/e ttz~) , the c haxxge
in porosity, volume shrinkage and �ijncreasE i.n briquette density
i.s shown in Table 5 before and aft.e:r annealing at :1. 000 oC
0
(metals) and 950 C (mixtu.res) ~ 1Talues (calculat ed by
A,elo Raychenlco) of the movement of �l.he d.i.ff'usion fx�ozit af'tez�
heating at 800 ~_~ ia.oo aC for� 1, 2 and 4 hours are gi~ren in
Table 4 for the cobalt diffusai.ng :into nickel axed sel.f~diffusion
for' cobalt and .iron. Table 5 gives for the two ru.ixtures the
porosity after pressing, anneal,.i.ng ~~t 95U oC., r~e..�liress.zn~; x.n thz,
cold and sintering at 1:100 oC� F:i.g, .1 i.:iltxstrat.es r~arr i~:1e
siriter~ing during prelimi:tiary anneal.:i.ng~ Figo L shows a
shrinkage crack ixi a br. iquett.e of nl~n-~~~nnc?a1c.d liowClfr r.~7Ttta:lT~zng
a cylinder of mass:i.~ve :.ron~; such c;c�acks tver'e nit. ob~ervc~d with
a sitni,l.a.r briquette of previously annealed powder. ~ `Che worl~
sl~.awed that hot c~rodaffusi.on .z.n suxf,~xt; ~. layer~:~ of l~~ax~t_tc lc~:~ durx.ng
arixiealing powder mixtures reduces b;~~t.gixe~ttc slaritxlta,~e~ Compacting
of briquet.t.es on account of 1?limina't:x.an of int erna.l defects ar-ri
disappearance of inter. nat. porosity ~o.f par t i~ l e.s was found t o play
Card 2/3 ~
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1
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r. ~r
~~ ~~o~
AUTHORS e F edorchenlco , I . M.
81.905
S/.1 ~(iJEiO/0.i 0/0.1 /009/01 c)
~L]..1.~~33~
and ICo s t yr�ko ~ N o ~l .
TITLE.; i~iechani.sm of .~hrinlcaQe iri Sant.4~x-r.nt~ Hriquet.te:~ of
Aletal Powders
PERTOA:ICA~,r: Fi.z.i.ka mek~rllov x metr~,l..Lav~~den~y~an 1.