Conclusions
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1.
High-temperature hardening has a favorable effect on the properties of aged austenitic steels; it increases their ultimate strength and their impact strength.
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2.
High-temperature hardening decreases transcrystalline embrittlement resulting from dispersional hardening.
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3.
Partial recrystallization during high-temperature hardening does not prevent the improvement of the mechanical properties of dispersionally hardened steel.
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4.
High-temperature hardening combined with aging makes it possible to obtain very good mechanical properties (σs > 100 kg/mm2 and ak no lower than 10 kg-m/cm2) in austenitic steels containing 1.5% V even when partial recrystallization occurs during deformation at high temperatures.
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Literature cited
V. D. Sadovskii, K. A. Malyshev, and E. N. Sokolov, Investigation of Heat-Resistant Steels [in Russian], Vol. 2, Izd. AN SSSR (1957).
G. N. Bogacheva, K. A. Malyshev, V. D. Sadovskii, and P. A. Ustyugov, Coll: Strengthening of Steels. Reports of the Meeting of Metal Scientists and Thermists [in Russian], Metallurgizdat (1960).
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 24–27, January, 1964
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Gorbach, V.G., Malyshev, K.A., Gess, A.V. et al. Effect of recrystallization-free hardening at high temperatures on the mechanical properties of dispersionally hardenable steels. Met Sci Heat Treat 6, 19–21 (1964). https://doi.org/10.1007/BF00661965
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DOI: https://doi.org/10.1007/BF00661965