SCIENTIFIC ABSTRACT KRESHCHANOVSKIY, N. S. - KRESHKOV, A. P.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000826410017-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 31, 2000
• Sequence Number: 17
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

')'/ 128/6 21UX,10 I I /G,) I /G() I
The e,'f,2r.-t of' rodif*i,~rs on.. A004/A 127
Th(, af-Idition o! Ba increased the crack re6istance; if this
B-I-arblitlnn 1,; 1v,-1:ie(i, the cracl~c resistance, deterioratps. An ~iddition of C, , . !.;, ~,,, I
Tl. "n-i Vx tL~3(j inorc,'t,;ed the crack resistince oi' the stf,,cl. A comparison
r;hr!nkij-,,e- an~,' cravi-rPsist;ince curves makes it possible to assume that one of
t
~hp reasono for an increased crack resistance as a result of Ce-, Ba-, Zr- and
Ti-x,idilti(~ns is the change in the kinetics of the shrinkage process. 'tn ana-
lysis cf nonmetalli(. inclusions and gases showed that an addition of 0-15% Ce
reduces the amount of nonmetallic inclusions bY 75%, th:it 0*' gaSe5 bY 30% and,
the !A1l'-'UV content by 20 - 35%. It is important to point uut that all the tesu,:
modifiers increase the steel smelting temperature. . Th,, authors present a nu.,11b.-ar
of gr~-ph5 showing the various effects of the modifiers treated. Tnere are 7
figures.
Caml 2/2

KRESCFANOVSKI, ji.s. [Kreahchatiovdci3r, N.S.] ;,.SIDOPMKO) ~IvFq
Relation of steel properties in liquid and solid state. Analele
metalurgia 16 no.3-.5944 JI-S 162,

1~~UCHANOVSKIX, kand. tekhn.nauk, red.; STEPANCHENKO, N.S.,
red. izd-va; SOKOLOVA, T.F., tekhn. red.
[making steel for shaped castings) Vyplavka stali dlia fa-
sonnogo litlia; trudy. Moskva, Mashgiz, 1963. .263 P.
(mm 16:7)
1. Vaesoyuznoye nauchno-takhnicheakoye soveshchaniye liteynoy
sektaii TsP NTO MAShPROM po voprosam vyplavki stali dlya fa-
sonnykh otlivok.
(Steel-Electrometallurgy)
(Foundries-Equipment and nupplAes)

KRESHCHAIIOVSKIY,p U.S.; SIDORENKO, R.F.
,-,
Effpct of inoculator# on the viscocity of liquid steels. Izv.
vys. ucheb, zav.; chern. met. 6 no.91142-144 163. (MIRA 16:12)
1. TLentrallnyy nauchno-lealedovatallskly institut, tekhnologii
mashinostroyenlya i Mskovskiy energetichookiy institut.

meow-
L 14966-63
immiray i Rs A
I p3mov 8/0128/63/OW/007/0029/0031
;AUTHORSI Reshobanovskly, N. Sol Vassranko, V. R.
TrTrZt Influrnes of perium on Up mechanical and technological properties of steel!.'
125XblMlFL__,(L -kl
IsSOURCEs Lifeynoye protmadetvc, no. 7,, 1963, 29-31
ngth, weldat
ITOPIC TAM cerium, steel 15KhIWLt Plasticity" impact, stre dutyp
icrac)dng, structuref steel
1 ABSTRACTs Addition of cerium to chrome-molZbdonum steil'MIMIFL has been studied 1i
lunder both laboratory and shop conditions. Experimental samples were produced at
;_TqNI1Tt1AShg and described in "Trudy*" TaNHWAShE. 1961, No. 26. This was done in j,
;,an attempt to improve We plastic properties, Impact strength, weldability, and i
~resistence to craclkdin f steel. Ferrocerium was poured directly into the molten
metal at 1500-1590C. asteel was homogenized at 1040-1060C, normalized at.
900 + IOC and amealed at 710-7300. The addition of 0.10-0.15% of cerium (Produc-
ing The residual cerium content~of 0.035-0.C50%) greatly improved strength and
plasticity of steel and stabilized these properties within narrow limits for
numerous tested samples. Treated steel also become cold-short at lower tampqre.-
tures. At 400-600C it showed an lomact strength Increase from 1.5-2.5 kg/ciM2 to
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L 14966-63
ACCESSIM NRi APVO4267
m2
7.2 kg/c , The sustained strength was not diminished,by the treatzent. Cerium
'lo-wered the amount of dendritia oryaWal and also the size of grains.
It Inerease&
vanadium and mc
the content of klybdenum), owered the eontent of iron, and increased
the resistan 7rto corrosion. ed gas inclusions (especially of 0 an
and loffered the phosphorus content and nonmetallic inblusions. In the amoumnt of
0.10-0.15% it improved the weldability of steel# lowerod its viscosity In the
molten condition, and increased its resistance to cracking. Orig. art. hast 12
graphi and I photograph.
ABSOCIANONs none
SUBMITTEM 00 DATE AM OftugO ENCLe 00
SUB COD.Ei ML No REF S071 001 OTHMs 000
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WU
L EWP(q)/W(m)/ft$ AMC/ASD JD
ACCMSION 11M, A 3004784-
-7
AUTEOM Xreshchanovskiyp V. 9 1 11azarenkop V. R,1 r~y*zhkoval G, A,
TIM i Srfeot of cerium on the meahanical4roperties of 15MMIF steel.,
'6
SOMCES Xetallovedeniye i termicheskays obrabotka, metallov, no. 8, 19630 23-27
TOPIC TAGSs 15DIMP steel, coriumg caloium-silloon, ferroellicon'o, ferrocerium, C e,
AMMIRAM: Authors studied under laboratory and produotion-line conditions the
possibility of improving the plastic properttes and impact toughness of a steel !
by modifying it with aerium. The propertive of the 'teat steel were analyzed on
specially cast test samples# plates and commercial objects cast into fo=o..of a i
quick-drying substance on liquid glass,'. Authors found that cerium increasev the
mechanical propertiee of 15KhIMI? steeL The optimum quantity of cerium intro-
duced into the steel is 0.1 to 0*15% (by. calculation). The beat results are
obtained when the cerium Is plaosd 1nto tho ladle or molten metal bath prior to
tapping.' For best elimination of non-ometallia inalusions, the ferrocerium has -to
be put in together with calcium-silicon or terrosilicon. The beat effect trom
the cerium is obtained uhan it is p(A into the metal at 1500-1590C and the metal
held for not more than 25 minutes after the cerium's introduction. Orig- irt.
1-Card.- 1/2

ACCESSION NRt Ap4oo6249
S/0128/63/000/012/0019/0019
AUTHORSs Kreshchanovskiy, N. S. (Candidate of technical sciences); Sidoranko N.
(Engineer)-----
TITLE: Effect of modifiers on the Viscosity of molten steels
SOUPLE.- Liteynoye proizvodstvop no. 12, 1963, 19
TOPIC TAGS: molten steel viscosity, 40L steel, Khl5N25 steel, Khl5N25M3V3TYu steal,
titanium effect, cerium effect, zirconium affect, magnesium effectp lithium effect)
calcium effect) steel viscosity, steel modifier, steel modifying, modified steel,
zirconium modified steel, cerium modified steel, titanium modified steel, magnesium
modified steel, lithium modified steel, calcium modified steel
ABSTIbIGT: This work was carried out to study the effect of Tij Ce, Zrj B, Mg, Li
and Ca on the viscosity of carbon steel 40L and of alloyed steels Khl5N25 and
Khlq125M3V3TYu. Metal viscosity was determined by the method based on observing
free torsional oscillations of the crucible containing molten metal and their
attenuation during the periods of heating and cooling. It was determined that the
curves of the 40L steel viscosity (with and without modifiers) coincided well. No
vi 't h teresis was noticed* Cap Ca, Zr and Mg decreased the viscosity of 40L
scos~2y Ys
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ACCESSION NRt AP4006249
in the whole temperature range of the investigations, while B decreased it only at
temperatures exceeding 1560C, and Ti increased it at all temperature3. Cc, Ca, U
and Mg decreased the viscosity of steel Khl5N25., while Zr and especially Ti in-
creased it. The study of Khl5N25M3V3TYu showed no viscosity hysteresis phenomena.
The curves of its viscosity (during heating and cooling) coincided well. It was
concluded that the properties of molten alloyed steels are governed by the great
quantities of Al and Ti which determine the viscosity. The homogenizing and re-
fining action of Go and Ca was reflected in the general lowering of steel viscosity
(regardless of the steel type). Orig. art. has: 1 table and 3 figures.
ASSOCIATION- none
SUB14ITTED: 00 DATE ACQ: 09Jan64 &NCL-. 00
SUB CODEr ML NO REF SOVj 004 OTHERs 000
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KMHGRANOVSKIYP N.S,; SIDORFNKO, M.F.
Effect of smelting temponturv conditiona on the visconity of
liquid high-alloy steel. Izv. vys. ucheb. zav.; chern. met.
6 no.lls6O-64 163. (MIRA 17:3)
1. Moskovakiy anergetichookly institut.

-ACCESSION.NR:-AT4016068
-S/2698/0-/000/0-00/023-5/0238
AUTHOR: Kreshchanovs~ly, N. S.; Nazarenko, V. R.
TITLE: Effect of cerium on the mechanical properties of.cast, high temperature,
151