Conclusions
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1.
Brief heating of steel 12Kh1MF in the austenitic range of temperatures not inducing recrystallization and homogenization of austenite lowers the resistance of the steel to crack propagation in impact bending tests.
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2.
The most sensitive characteristic of the structural condition in impact bending tests is the work of crack propagationa p.
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Literature cited
M. S. Drozd and N. A. Shcheglov, "Investigation of the components of the toughness of steel," in: Metal Science and Strength of Materials [in Russian], Volgograd (1970).
S. S. Gorelik, Recrystallization of Metals and Alloys [in Russian], Metallurgiya, Moscow (1967).
Ch. Crussard et al., "Comparison of ductile and fatigue fractures," in: Atomic Mechanism of Failure [Russian translation], Metallurgizdat, Moscow (1963).
Additional information
ChELYaBÉNERGO Regional Power Board. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 5–7, March, 1975.
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Berezina, T.G., Borodina, É.R. & Ashikhmina, L.A. Effect of brief heating on resistance to fracture of steel 12Kh1MF. Met Sci Heat Treat 17, 188–190 (1975). https://doi.org/10.1007/BF00663675
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DOI: https://doi.org/10.1007/BF00663675