Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels

Ruan, L. H.; Wu, K. M.; Qiu, J. A.; Shirzadi, A. A. and Rodionova, I. G. (2017). Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels. Metal Science and Heat Treatment, 59(1-2) pp. 97–101.

DOI: https://doi.org/10.1007/s11041-017-0110-4

Abstract

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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