The structure, the strength characteristics and the impact toughness at different temperatures up to –100°C of tubular billets from steel 35 are studied after a thermal deformation treatment involving initial heat hardening, cold plastic deformation by radial forging and subsequent annealing. The regular features of structure formation in steel 35 after the thermal deformation treatment based on cold radial forging are determined. It is shown that formation of macroscopic elements (splits) on the fracture surface affects positively the level of the cold resistance.
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The work has been performed according to Project No. 11.8213.2017/8.9 within the base part of the state assignment to higher educational organizations in the sphere of scientific activity and with financial support of the Ministry of Education and Science of Russia.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 15 – 25, October, 2019.
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Simonov, M.Y., Pertsev, A.S., Shaimanov, G.S. et al. Cold Resistance of Structural Steel Subjected to Cold Radial Forging. Met Sci Heat Treat 61, 601–609 (2020). https://doi.org/10.1007/s11041-020-00467-7
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DOI: https://doi.org/10.1007/s11041-020-00467-7