R
L 5*000
E Ew @];ro6
Kook, 400 M, 0 1
F, VA
4@ tam .
ro: q* Alo
, , ,
N@o
McnotZOVAS A.11.
Experiment in the assembly of autmobile tires. K=ch.i razo
21 no. 5.-54 my- 162. 09M.- 15:5)
1. KirovskLy shinW zarod.
. (Tires, Rubbor)
FROKOPENKO, A.I.,, kand.seliskokhoz.nauk; HOKROUSOVA,, L.A.
Naturalization of a new parasite, Zashall. rast, oft-attd, i bol,
8 no-11149-50 N '63. .I -(MRA 17:1")
1. Abkhazskay'a karantinnaya laboratorlya (for Prokopenko). 2. Star-
shiy agronom kbkhazskoy karantinnoy laboratorii (for Mokrausova,).
XOTSHOT, G.K., inSh.; KOIMOUSOTA. N.I..Lrjh.; =TAROT, re.P.. kazid.
takhn.nmtxk -,*-.--.----- --
Computing plannad car movements an an electronic cal-
culatiV machine. Test.TSKII WS 19 no.5,.23-25 160,
(KM 13t8)
1. Inmtitat komplakenrkh transpo-.tzWkh problem Akademli.
Mak SSSR.
(Railroads-Traffie)
(Alectronlic: calculating-, machines)
PETROVI A.P.j doktor tekbn. naukr pror.; DUVAMAIII S.V.p kand, t6khne
nauk; A.BADUROVA., Ye,V,,,, inzho; ZINIHAVIEV, H.M., inzh.;
KILWKLM... Yu.S.., inzh.; SX4A?,INA,K.A.S, irte-..; ZLVIYAWV,
B.A., kand. tel-kn.nauk; HKOIAM K.A. doktor takhn. nalkj,
prof.; VASILIYEV, G.S... kand. takhn', nauk; 13IOWNTAY, 14-A...
inzh.; FROLDVI I.A., inzh.; SIDELINIKOV, V.M., in2h.;
nzh.; POZAI-WITIRp- E.Lp kand, tekhn. nauL;
Z-16-HGO E.A.,q retsenzent; MAKSI-MOVIGII,, D.M.p kand. tekhn.
nauk.. roteenzent; EWE.. V.Yu.# inzh,, red.
[use of electronic digital computers in compiling train
sheets]Sostavlenie grafilca. dvizheniia poozdov na elektron-
rqIch tsifrovj-kh.vychislitel'nykh mashinakh. Moskvap Trans-
zheldorizdat, 1962. 199'p. (KRA 15:9)
1. Chlenw-korrespondent, Akademii nauk SSSR (for Petrov).
(Hailroads-Train dispatching)
(Railroads--Electric equipment)
AVAITOV, B.S.; MOKROT., A.T.; MEGIMIKOV, YU.T.
PSK-1 sliding welding bracket* Kadi. i nafto obor* no*IC41-43t6/+
(HM 17 ej)
1, &Lvad imeni Patrova,, g. Volgogradw
AUMV@ W4,
t UWAM rca-.VuF-CWM awLtIM of 4all .
Kuufakbo 4MIAmtnok".
- twi&24-25 At #654
OUR& 2*321
30454
JW 54 S/126/61/DI2/003/009/021
AUTHORS: Xrishtal, M.A., and _@@@V
TrJrLP..- Work hardening of surface layers'formed by diffusion
of iaolybdenum into iron and its alloys
PERIODICAL: Fizika welvallov i metallovedeniye, vol.12, no.3, 1961,
389-394
TEXT: one of the shortcomings of the diffusion method of
surface-hardening of metal components is that they produce
diffusion layers whose hardness and strength decrease'vith the
distance from the surface. Means of attaining uniform mechanical
properties across such diffusion layers are required, and a
possible method for achieving uniformity in the mechanical
properties is described in the present paper, The method proposed
in based on the fact that (a) the variation of hardness is
associated with the gradient of the alloying element concentration
across the thickness of the diffusion layer; and (b) the rate of
work-hardening of ferrite dnereases with increasing content of
alloying add:,tions. Consequently, a diffusion layer subjected to
plastic deformation should work-harden most in its softest part
Card I 1@1 el
30454
Work hardening of surface layers S/126/611012/003/009/021
E193/E135
and leastin the hardest region with the maximum concentration of
the alloying additions. To verify this proposition a series of
diffusion experiments were carried out. Diffusion couples were
formed by a molybdenum fail (0-04-0-05 mm, thick) sandwiched
between strips of iron or one of the five types of iron-base
alloys, containing up to 5 at-% Co, Si, Cr, W, and V. Good
cont4et at tite diffusion interface was ensured by spot-welding the
components in hydrogen, after which they were subjected to a
vacuum diffusion treatment for 10 hours at 1250 OC. Each diffusion
couple was sectioned, and microhardness, HJL# measurements were
taken across the thickness of the diffusion layer at regular
2.ntervals. @Each type of the specimen was then compressed to 10,
20, 30 and 40% reduction in thickness, after which the micro-
hardness measurements were again carried out, the degree of
localised deformat�on c, %. in the diffusion layer being deter-
mined from the decrease in the distance between the original
micrahardness tester@indentations. Frank these data the so-called
specific microhardness &HIL/c (where AH,@L in the increase in
HIL due to deformation c) was determined which gave the measure
Card Z/ XY,
3CJ454
Work hardening of surface layers ... S/126/61/012/003/009/021
E193/EI35
of work-hardenabLlity of a particular region of the diffusion layer.
The results are reproduced graphically, those obtained for the
5 at.Y& Co-Fe allay being shown in Fig.3 where FIT,
,L (kg/mm2, lef t-
hand scale), &Hp/c, and c extreme right-hand scale) are
plotted against the distance (mm).Crow the surface of the
diffusion layer formed by diffusion of molybdenum. Circles ind
squares denote HIL before and after 40% total deformation,
respectively; the variation of localised deformation c in a
specimen deformed to 10% reduction in thickness is denoted by white
triangles, black triangles relating to specific microhardness
(AHILle) of specimens deformed to 40% reduction in thickness.
Analysis of these and other results showed that hardness of the
diffusion layers studied varied across t,---eir thickness in accordance
with the variation of the molybdenum content. The effect of plastic
deformation (compression) an the variation of Hpt el and
across the thickness of a diffusion layer was also dependent on the
molybdenum contents the regions of low Mo content being
preferentially work.hardened. This proved the possibility of using
plastic deformation to attain greater uniformity of mechanical
Card 3@@
30454
S/126/611012/003/009/021
Work hardening.of surface layers E193/E135
properties across surface diffusion layers. The beneficial effect
of plastic deformation was most pronounced in the diffusion layers
formed by molybdenum in the Fe-Sis and least noticeable in the
Fe-V alloys.
There Are 7 figures and 12 references: 4 Soviet-bloc, 4 Russian
translations of foreign language articles, and 4 non-Soviet-bloc.
The English language references read as follows:
Ref.2: C. Austin. Trans. ASK, 1943, Vol.31, 321.
Ref.4: C. Austin, L. Luite, R. Lindsay. Trans. ASK, 1945, Vol.35,
446.
Ref.5: C. Lacey, M. Gensamer. Trans. ASM, 1941f. Vol.32, Sa.
ASSOCIATION: Tul'skLy mekhanicheakiy institut
(Tula Mechanical Institute)
SUBMITTED: December 19% 196o
Card
S/126/62/014/002/0o6/oI8
Elll/E192
AUTHORS: Krishtal, M.A., and___W@krov, A.P.
TITLE;: Data procn-saing in reaction diffusion
PERIODICAL: Fizika metallov i metallovedeniye, v.14, no.2, 1962,
200-204
TEXT; A general method of determining diffusion
coefficietits is described and app'lied'to molybdenutn and tungsten
solutions in a- and y-iron. The method is especially interesting
for elements forming substitutional solid so -lutions in a- and
y-ironi and relates to the situation where an a-phase layer grows
through diffusion on the y-phase specimen. The-diffusion
specimens were prepared from electrolytic@ iron and alloys of
Fe + 3% w1w W, and Fe + 1.901i w/w Mo, respectively. The method
of melting and annealing was -described in MI. v. 12, no. 3, - 961,
389. For tungsten the diffusion coefficient in a-iron was
9.6 x io- 1-1. cm/sec at 1090 OC and 3.2 x 10-9 at 1280 'C; .Z,n
y-iron 5.6 x 10- 11 at 1090 OC and 1.4 x 10- 9at 1250 *C; for
Card 1/2
Data processing in reaction ... S/126/62/014/002/006/016
Elll/E192
molybdenum the values were 7.0 x 10- 12 at 800 and 3.3 x 10- 9 at
1250 OC in alpha, the values in gamma being substantially tho same
as for a-iron. The activation energy f9r diffusion of tungil-en
in a- and y-iron was 71.0 and 81.0 kcal/f atom, respecLivc!), om
the entropy change 17 and 23 cal/S atom. C, respectively, For Mo
the diffusion activation energy is 57.0 kcal/& atom in both a-
and y-iron, the entropy-change values -.@eing 9 cal/g atom. "C,
There are 2 figures and 2 tables.
ASSOCIATION: Tul'skiy mekhanicheskiy institut
(Tula @Jechanical Institute)
SUBMITTED: October 20, 1961, initially, and
March 201 1962, after revision.
Card 2/2
Nacbmism of diffusion in body-centered iron. FIS.wt.i metmuoved.
15 no.14%458 Mr 1.63. .(KML 164)
1. Thl skly '"khanicheekly institut.
(Crystal lattices) (Diffusion)
. . . . . . . . . .................
ACCESS= uR: APW17364 S/M26/64/(XL7/002/0285/M6?
MOR:' Kokrovs A. Pe
TITLE: &,a of formation and vacancy concezmr4ioa measurements in irod-molyb-
ra
asnim alloys
OOURC Fizika metallov i-metallovedeniyes v. 2.Tj, no. 20
E 19as 265-287
V,?1C'TAGS: lattice vaca=y, electric riesiAtance iron molybdenum alloy, activa-
@ioh energy
ABSTRACT: Large- vacangy creation in lattices at high temperatures Introdaces an
I idditional electric resistance which is an exponential functiom temperatump
thus
Ar
Y&SM Q3 - inergy of vacancy formation, It - gas constant, T - absolute taqwaturee:
I In #vestigation was zv-4e of this resistance as -a function of Usperature in lrmk-.
-alloys with variable compos
num
@01A& @ . It Is shoun that tho vacancy conc n-
irAtIon Increas" exW, nenti&14 with Uqwrature, and for a fl=d twperstan the
Vt.
-card
PURCE-60bg: -uitloi~~'(/66/000/009/1076/ioT6I
V