Conclusions
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1.
Secondary hardening in tempering of carbon-containing iron-nickel martensite alloyed with molybdenum is caused by precipitation of metastable molybdenum carbide, which occurs with greater completeness and, in addition, on a background of the process of Fe−Co type close-range ordering in steels additionally containing cobalt.
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2.
As the result of use of the secondary hardening effect it is possible to obtain a high combination of mechanical properties in carbon-containing iron-nickel martensite-base steels alloyed with cobalt and molybdenum.
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Literature cited
Yu. I. Ustinovshchikov, Secondary Hardening of Constructional Alloy Steels [in Russian], Metallurgiya, Moscow (1982).
R. D. Zaitseva and M. D. Perkas, "High-strength nickel steels with secondary hardness," in: New Steels and Alloys in Machine Building [in Russian], Mashinostroenie, Moscow (1976), pp. 105–110.
V. I. Sarrak, L. I. Spektor, and R. I. Éntin, "The reasons for the influence of nickel on the cold brittleness of iron," Dokl. Akad. Nauk SSSR,155, No. 5, 1054–1061 (1964).
Ya. M. Potak, High Strength Steels [in Russian], Metallurgiya, Moscow (1972).
M. D. Perkas, P. L. Gruzin, A. F. Edneral, et al., "The influence of cobalt on the aging of iron-nickel alloys," Metalloved. Term. Obrab. Met., No. 10, 2–10 (1972).
V. A. Kazakovtseva and M. P. Usikov, "The structure of vanadium and molybdenum steels in the stage of formation of special carbides," Fiz. Met. Metalloved.,53, No. 3, 764–771 (1982).
Additional information
N. E. Bauman Moscow Higher Technical Institute. I. P. Bardin Central Scientific-Research Institute for Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 33–37, May, 1985.
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Rakhshtadt, A.G., Kan, A.V., Khovova, O.M. et al. Dispersion hardening of high-strength Ni−Co−Mo steels. Met Sci Heat Treat 27, 350–356 (1985). https://doi.org/10.1007/BF00693375
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DOI: https://doi.org/10.1007/BF00693375