Conclusions
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1.
Repeated strain of St. 3 steel to the yield point with intermediate aging for 2 h at 100°C (RMTT) for four cycles of treatment raises the yield point 25% while retaining satisfactory plasticity (the relative reduction in section decreases somewhat).
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2.
RMTT reduces the creep rate of St. 3 steel at 400°C by more than two orders. With an increasing number of cycles the heat resistance of the steel increases to nearly the level of low-alloy pearlitic steels.
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Literature cited
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I. A. Oding, L. K. Gordienko and Z. G. Fridman, In: Investigations of Alloys of Nonferrous Metals, No. 4 [in Russian], Izd. AN SSSR (1963).
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V. S. Ivanova and L. K. Gordienko, New Methods of Increasing the Strength of Metals [in Russian], Nauka (1964).
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Additional information
Institute of Metallurgy of the Academy of Sciences of the USSR. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 12–14, June, 1967.
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Gordienko, L.K., Zubarev, P.V. Effect of repeated mechanicothermal treatment on the mechanical properties of low-carbon steel. Met Sci Heat Treat 9, 415–416 (1967). https://doi.org/10.1007/BF00657582
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DOI: https://doi.org/10.1007/BF00657582