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Effect of Cryogenic Treatment on Microstructure and Mechanical Properties of 3Cr13 Steel

Jia Guo

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Abstract

The effects of common heat treatment and cryogenic treatment on microstructure and mechanical properties of 3Cr13 steel were studied using a SLX-30 cryogenic box with program control,and metallography microscope,SEM and HRC sclerometer.The results show that,compared with the common heat treatment,more carbides precipitation forms in the steel after cryogenic treatment;The hardness of the steel increases by 5.3 HRC,and the impacting toughness increases by 0.8 J after cryogenic treatment.

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What this paper is about

The effects of common heat treatment and cryogenic treatment on microstructure and mechanical properties of 3Cr13 steel were studied using a SLX-30 cryogenic box with program control,and metallography microscope,SEM and HRC sclerometer.The results show that,compared with the common heat treatment,more carbides precipitation forms in the steel after cryogenic treatment;The hardness of the steel increases by 5.3 HRC,and the impacting toughness increases by 0.8 J after cryogenic treatment.

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Available abstract

The effects of common heat treatment and cryogenic treatment on microstructure and mechanical properties of 3Cr13 steel were studied using a SLX-30 cryogenic box with program control,and metallography microscope,SEM and HRC sclerometer.The results show that,compared with the common heat treatment,more carbides precipitation forms in the steel after cryogenic treatment;The hardness of the steel increases by 5.3 HRC,and the impacting toughness increases by 0.8 J after cryogenic treatment.

Key concepts: Cryogenic treatment, Microstructure, Metallography, Materials science, Carbide, Metallurgy, Cryogenic temperature, Precipitation

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