2010•Rejiagong gongyiRequires access

Influence of Heat Treatment on Strength-toughness of a Medium-carbon-low-alloy Cast Steel

Jianxin Tang

Abstract

The influences of quenching and tempering temperature on microstructure and mechanical properties of medium-carbon-low-alloy wear-resistant cast steel were investigated.The results show that the best quenching temperature is 850 ℃,the hardness is not significantly changed(50～53 HRC)through different quenching and tempering temperature.The optimal impact toughness of the tested steel can be obtaind by quenching at 850 ℃ and tempering at 250 ℃.X-Ray analysis finds that steel after tempering main matrix of tempered martensite.

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Key concepts: Tempering, Quenching (fluorescence), Materials science, Metallurgy, Alloy, Martensite, Toughness, Microstructure