SCIENTIFIC ABSTRACT VASILYEV, A.A. - VASILYEV, A.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001858820002-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 2
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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L 10876-65
ACCESSION NR: AR4046551 0
300K connected with the transition of Cr from the antiferromaqnetic
state into the paramagnetic state. Cornected with the same transi-
tion is also the peak on the curve showing the variation of the anti-
ferromagnetic antiphase doma.4- s t r-,,,- ~j i- e
;~Ot
)t the !F :s
a;: S f'4 r a;~ tri-ple pea-k T~
a1 i -oj e s aj-i~p 1 e s a"D
reduc:es the !F level to ~:he viC- a-n-11 qreitly rerjj(--:,s
F ievf: 1t r 1, F7-
SUB CODE: MM ENCL: 00
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ACCESSION NR: AT4048134 S/0000/63/000/000/0250/025-7
AUTHOR: V 1UL&",..AA_, Gruzin, P. L_ Zharov, Yu. D. . Poltkarpov, Yu. A.,
Breger, A. fa -'60-r-di~n-, V~-X-.--
radiationi11 internal friction of
TITLE: Effect of-aamma and neutron ir on _S2pper
S0T',RCF- Vsesa, znaya kopferentsiva no rel.1--satalonn *in
r;We_i~_6i_n-en-a_Tn__M_e als anu a loys); :i-udy* krinferentsii. 'Muscov,,, Metallur-
gizdat, 19G3, 250-257
TOPIC TAGS- copper, internal friction, copper irradiation, gainma irradiation,
neutron irradiation
ABSTRACT: The paper reports the resultr or" studies on irradiation of copper by gamma
rays from Co-60, as well as by Po-Be neutrcns bnd in atomic piles. The maximum
dose was 580 r/sec. The irradiated objects weie placed in water-cooled vessels, and in
some cages the temperatur%or. the samples reached 80C. Common electrolytic copper
.';' -4 Bi, Fe, Si, Mg, Mn-, Ai3, Nt,
and urc.\ copper, grade V2,%contalning not over 5 x 10
_p
Sn, Pb, Sb and Zn were used in the tests. A"ter annealing, the Internal friction of all
gai les was iatwA to depend en the amplitude. Even small deformations increaac, the
Car V9

L 1499,-65
ACCESSION NR: AT4048134
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internal friction. Further irradiation by neutrons lowers the Internal frictioa by 50%.
However, the level of Internal friction after Irradiation is somewhat higher than after
annealing at 00C. Annv,,dtng, at 200C for 3 hrs. lowers the internal friction to the
initial value. Several samples were trradiated by Po- B- neutrons at the temperature of
liquid nitrogen. After Irradiation. the internal frtetion dropped somewhat Irl c-emparson
with the initial level. A po)ycrvstalline gamplo wag Irradiated in a pile aftcr deform a-
rion, although the Internal friction increasc-J ifter def~)rmation and the rna.Kimum could
not be observed, further irradiation in the pile lowered the internal friction. ~111ie-ding
at 206C fnr 2 hours returned Uie internal friction to the initial alue with the maximum
i r,)pj),,n g ~ igm t f i f - -3-n t!,. -Altvr )-,T-acfl,'~tjon and annealing at 100 or 200C t5 hrs.
,ho intomaj frii~tifjn Aid not cham~r ~,, i:1 annealing at .,O)CIC l''w"rod thp internal
'h- 1,;o-1 F-jr i~~ Radiati,)n ol an anneal(d D,111,,-
_~7j n n 1,r~ V A, 1 'V. r it I;, as
maxima ori the curve lie
intern&-I t ri, ~z:jn and incrPasp(i the res man(:t, rt-quencv The auth()rs 4rp
explain Uhis fact. Nlost publications c-on.4idk-r ',Eat !ht, ellminatlon of defectz- cause-1 bv
radiation taltes place at the dislocations Ln 'Lae crystals It should be not-ed that the
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ACCESSION NTI: AT4048134
observed change in properties is not caused directly by radiation but by partial elirnina-
ti in of these effects during annealing. Flectron microscopes show the defects wht