The possibility of creation of new competitive materials providing long-term and reliable operation of base members of heavy lifting and conveying machines operating under conditions of intense wear and impact loads at normal and negative temperatures is investigated. A thermokinetic diagram of decomposition of supercooled austenite is plotted for the newly developed steel 16GNTRA sparingly alloyed with elements of the Mn – Ni – Ti – B system. The effect of different heat treatments on the microstructure and mechanical properties of the steel is studied by scanning and transmission electron microscopy. The suggested mode of heat treatment of rolled products from sparingly alloyed steel 16GNTRA provides a hardness of 380 HBW and cold resistance KCV – 40 ≥ 21 J/cm2.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 32 – 37, November, 2021.
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Poletskov, P.P., Yakovleva, I.L., Koptseva, N.V. et al. A Study of the Structure and Properties of Novel Cold-Resistant High-Strength Steel for Operation Under Conditions of Intense Wear. Met Sci Heat Treat 63, 606–611 (2022). https://doi.org/10.1007/s11041-022-00736-7
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DOI: https://doi.org/10.1007/s11041-022-00736-7