The structure and mechanical properties of an ultrahigh-carbon steel modified with amorphous ferrosilicon with a low melting point are studied. The methods of x-ray diffraction, optical and scanning electron microscopy are used to study the effect of the amorphous modifier on the structure of eutectic ledeburite in the cast steel. Tests for tensile strength and impact toughness are conducted. It is shown that the mechanical properties increase as a result of the modification without subsequent heat treatment.
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The work has been supported by research project No. 15JCTPJC64600 “Tianjin Science and Technology Support Project of China” and by the National Natural Science Foundation of China (No. 51601126).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 18 – 21, September, 2019.
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Liu, Q., Wang, F., Zhang, X. et al. Novel Method for Refining Coarse Eutectic Carbides in Ultrahigh-Carbon Steel. Met Sci Heat Treat 61, 543–546 (2020). https://doi.org/10.1007/s11041-020-00458-8
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DOI: https://doi.org/10.1007/s11041-020-00458-8