Effect of the Quenching and Tempering Temperatures on the Microstructure and Mechanical Properties of H13 Steel

被引:0
|
作者
Wang, Jian [1 ]
Xu, Zinuo [1 ]
Lu, Xiaofeng [1 ]
机构
[1] Nanjing Tech Univ, Sch Mech & Power Engn, Nanjing 211816, Peoples R China
基金
中国国家自然科学基金;
关键词
H13; steel; lath; precipitated phase; quenching temperature; tempering temperature; WORK TOOL STEEL; THERMAL FATIGUE; HEAT-TREATMENT; RESISTANCE; MORPHOLOGY; CARBIDES; BEHAVIOR;
D O I
10.1007/s11665-020-04686-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
H13 steel is a typical hot work die steel with good strength and toughness that is often used to manufacture high-temperature disk springs. However, disk springs occasionally fail after use in the petrochemical industry. Therefore, the effects of the quenching and tempering temperatures on the microstructure and mechanical properties of H13 steel after quenching and tempering processes are investigated herein. The results show that the lath width (lath) controls the strength of the H13 steel. The precipitated phases mainly comprise Cr23C6, Cr7C3 and VC. The coarsening of the Cr23C6 phase reduces the hardness, while reducing the dislocation density improves the toughness of the H13 steels after quenching and tempering. When the quenching temperature is 1040 degrees C and the tempering temperature is 570 degrees C, the H13 steel after quenching and tempering has a uniform microstructure with good strength and toughness.
引用
收藏
页码:1849 / 1859
页数:11
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