Conclusions
A promising variation of strengthening of type St3sp steel is thermomechanical treatment, controlled rolling with intermediate recrystallization. With it the strength of the steel increases by 95–200 N/mm2, the 50% ductile-to-brittle transition temperature drops by 60°C, and the work for crack development doubles in comparison with these properties of steel in the hot rolled condition.
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Literature cited
L. V. Popova, D. V. Lebedev, D. A. Litvinenko, and A. G. Nasibov, "The properties of low-alloy steel with tellurium," Izv. Akad. Nauk SSSR, Met., No. 2, 127–129 (1983).
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Additional information
I. P. Bardin Central Scientific-Research Institute for Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 21–23, January, 1991.
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Popova, L.V., Nasibov, A.G. Controlled rolling with intermediate recrystallization of type St3sp steel. Met Sci Heat Treat 33, 35–38 (1991). https://doi.org/10.1007/BF00775032
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DOI: https://doi.org/10.1007/BF00775032