Cr – Mn – Mo – Ni pressure vessel steels containing 0.54 and 1.55% Si are studied. Metallographic and fractographic analyses of the steels after tempering at 650 and 700°C are performed. The impact toughness at – 30°C and the hardness of the steels are determined. The mass fraction of the carbide phase in the steels is computed with the help of the J-MatPro 4.0 software.
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The authors gratefully acknowledge the financial support from the Wuhan International Science and Technology Corporation Program (No. 2014030709020307).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 33 – 37, February, 2017.
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Ruan, L.H., Wu, K.M., Qiu, J.A. et al. Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels. Met Sci Heat Treat 59, 97–101 (2017). https://doi.org/10.1007/s11041-017-0110-4
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DOI: https://doi.org/10.1007/s11041-017-0110-4