The effect of quenching from the intercritical temperature range on formation of martensite-ferrite structure in steel 10Kh3G3MFS deformed preliminarily by the method of cold radial forging is considered. The microstructure of the steel is studied using optical and scanning electron microscopes. The post-quenching grain size and microhardness of the steel are determined. Tensile and impact bending tests are conducted. The dependence of the mechanical properties of the steel on the quenching mode is described. The diagrams of structural strength are used to show the possibility of formation of different combinations of strength and impact toughness by changing the heating temperature and the time of the isothermal hold in incomplete quenching.
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The study has been performed with financial support of the Ministry of Education of Russia within implementation of the program of activities of the world-level scientific and educational center “Rational Use of Mineral Resources”.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 3 – 9, July, 2021.
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Barsukova, T.Y., Panov, D.O. & Simonov, Y.N. Laws of Formation of Structure and Properties in Cold-Deformed Low-Carbon Structural Steel Under Incomplete Quenching. Met Sci Heat Treat 63, 347–353 (2021). https://doi.org/10.1007/s11041-021-00694-6
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DOI: https://doi.org/10.1007/s11041-021-00694-6