2011•Heat treatment of metalsRequires access

Heat treatment of martensite/bainite dual phase of Cr12MoV steel

Zou Zhong-hua

Abstract

The influences of austempering process on properties of Cr12MoW steel were studied.The results show that the martensite/bainite dual phase structure of the steel can be obtained by austenizing at 1020 ℃ and then austempering at 280 ℃ holding for 3 h.Compared with normal quenching,the austempering remarkably enhances the wear resistance of the steel with wear loss decreased by 56% while impact toughness is not reduced.

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Key concepts: Austempering, Bainite, Materials science, Martensite, Dual-phase steel, Metallurgy, Quenching (fluorescence), Wear resistance