Conclusions
-
1.
Prolonged aging of steel 15GS leads to embrittlement of both deformed and undeformed samples. The most sensitive embrittlement criteria in the aging process are the work of crack propagation and the ductile-brittle transition temperature T50.
Originaltreatment
Composition, %
C
Si
Mn
Cr
Ni
Cu
S
P
Normalization
0,15
0,85
0,98
0,26
0,20
0,16
0,023
0,029
Hot rolling
0,14
0,80
1,13
0,17
0,08
0,17
0,021
0,021
-
2.
High-temperature tempering eliminates the susceptibility of the deformed steel to embrittlement in the process of aging.
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Literature cited
S. V. Serensen, Resistance of Materials to Fatigue and Brittle Fracture [in Russian], Atomizdat, Moscow (1975), p. 54.
Additional information
Ural Branch., F. É. Dzerzhinskii All-Union Heat Engineering Scientific-Research Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 14–15, March, 1982.
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Balakhovskaya, M.B., Davlyatova, L.N. Effect of prolonged aging on the susceptibility to brittle fracture of steel 15GS. Met Sci Heat Treat 24, 162–163 (1982). https://doi.org/10.1007/BF01166843
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DOI: https://doi.org/10.1007/BF01166843