Effect of quenching and partitioning on microstructure and mechanical properties of 30CrNi3MoV steel

doi:10.13251/j.issn.0254-6051.2023.08.032

Abstract

Abstract: Microstructure control is a commonly used method to optimize the mechanical properties of low alloy high strength steels. The microstructure of the 30CrNi3MoV steel was investigated by TEM, and the mechanical properties were tested by uniaxial tensile test. The results indicate that the quenching and partitioning treatment leads to the formation of a multiphase structure composed of martensite, bainite, and a minute quantity of retained austenite. The differences in carbide size, the relative content of different phases, and the finial mechanical properties can be attributed by the different partitioning temperatures.

Key words: quenching and partitioning, microstructure, bainite, carbide, mechanical properties

CLC Number:

TG156.1

Zhao Qian, Qiao Zhixia, Zhang Yaran, Dong Ji, Xue Dongyang. Effect of quenching and partitioning on microstructure and mechanical properties of 30CrNi3MoV steel[J]. Heat Treatment of Metals, 2023, 48(8): 194-198.

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