INFLUENCE OF ALLOY ELEMENTS ON HIGH TEMPERATURE STRENGTH OF CHROMIUM-NICKEL AUSTENITE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00926A002100060012-1
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 9
• Document Creation Date: December 15, 2016
• Document Release Date: October 9, 2003
• Sequence Number: 12
• Publication Date: March 30, 1950
• Content Type: REPORT

25X1
Approveg 1k&WkQO ANrg , DP80-00926A00210 6001
CENTRAL INTELLIGENCE AGENCY" REPORT
INFORMATION REPORT CD NO.
25X1
DATE DISTR...3
Mar 1950
NO. OF PAGES
1
NO. OF ENCLS.
-SUBJECT Influence of Alloy Elements on High
Temperature Strength of Chromium Nickel
Austenite
THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE
OF THE YNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT 50
U. S. C.. SI AND 32. AS AMENDED. ITS TRANSMISSION OR THE REVELATION
OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PRO-
HIBITED BY LAW. REPRODUCTION OF THIS FORM 15 PROHIBITED.
THIS IS UNEVALUATED INFORMATION
25X1
translation
of an article entitled rtInfluence of Alloy Elements on High Temperature
Strength of Chromium-Nickel - Austenitelt written by A M Borzdyka which
appeared in ttDoklady Akademii Nauk SSSRtt, Vol 63, 194, No 3, pages
265-267. This article contains an evaluation of (long=-time)-creep
test data obtained on austenitic Fe-Cr-Ni alloys for influence of
alloy elements on results and an explanation of the difference in
effect of Cr and Ni, on the one hand and MMo W Cb and Ti, on the
Cher hand upon the creep strength./
(LISTED BELOW)
SUPPLEMENT TO
REPORT NO.
CLASSI FICATION CONFIDENTIA
NSRB
DISTRIBUTION
Approved For Release 2003/12/04: CIA-RDP80-00926AO02100060012-1
25X1
25X1
 25X1 Approved For Release 2003/12/04: CIA-RDP80-00926AO02100060012-1
Approved For Release 2003/12/04: CIA-RDP80-00926AO02100060012-1
 ILLEGIB
10C19 1 Z 1#kd$ Iii-RDP80-00926A00210
INYLUZNCZ OF ALLOY !LZNZYTS
ON HIGH TlE1MATUR STRZIIGTH
Of CHRCYIW-YICiZL AUSTZNITZ.
at a 46 as w [t y Ti
Titanium, %
DA. Influence of titanium
on creep strength of 14-14 steel
ved For Rele Wt3~-~40b4t4AA-P80-00926A00210
'0 N X f0 S0 60 70 d0
Nickel, %
!IZ. 1. Influence of nickel
on creep strength of Fe-Cr-Ni
alleys containing 20% Cr.
#1
V
~O !. i,?
f~
j
1?
?c.
N IJ
Chromium,
S
tig. R. Influence of chromium
on creep strer th of Te-Cr-Ni
alloys with 154 Ni.
0
OM
+
!2
1- _
a
-700
 I
Approved For Release 2003/12/04: CIA-RDP80-00926A002100060012-1
INFLUENCE OF ALLOY ELEMENTS ON HIGH TEMPERATURE
STRENGTH OF CHROMIUM-NICKEL AUSTEN'ITE
By A. M. Borzdyka
[Translated from DOKLADY AKADEMII NAUK SSSR, vol. 63, 1948,
No. 3, pages 265-2673
z n o
Evaluation of (long-time) creep
teet data obtained on austen-
itic Fe-Cr-Ni alloys for influ-
ence of alloy elements or,
results.
Explanation of the cause of the
difference in effect of Cr and
N1, on the one hand, and 1[e, W,
Cb, and Ti, on the other hand,
upon the creep strength.
As early as in prewar days. a eystematic study of the
effect of alloy elements upon the high temperature strength
of iron-ohromiu.r,-nickel .alloys was carried on by the author
{I )
As a,basic criterion, creep was selected in this study, being a
Approved Foi+ Release 7nnsI171nd ? me1n-RnpRn-nng9ROnn7n00060012-1
 Approved For .Release 2003/12/04: CIA-RDP80-00926AO02100060012-1
property of decisive importance for the useful life of alloys
exposed to high temperatures in service. Inasmuch as the creep
tests were conducted according to the classic, i.e. the long-
time method, this study required considerable time and was
completed only in 1947.
The present oommuni onL iocr deals with alloys from the
region of the gamma solid solutions of the ternary Fe-Cr-Ni
system. The basic composition of such alloys varies within
rather wide limits, that is, 10-78 Cr, 8-6co Ni, balance Fe.
The tests Harried ruL shc:'wed that if the structural
and technological facture are relo, 'o A etngle denominator,
the content of basic ~omFor.er;,.s e.-errs :r the creep of a ternary
solid. solution an effect tha . 'It 'U1y, smaller than one
may expect from thp r,- 61-11 Ls , ;,A' e" :t 'sr';-t'me tests.
If the creep reel gt,% 4-p t ant temperature )
of a aeries of l r 3n-