华东交通大学学报2025，Vol.42Issue(1)：105-112,8.
40CrNiMoA钢组织与耐磨性能研究
Research on Microstructure and Wear Resistance of 40CrNiMoA Steel
摘要
Abstract
In order to solve the problem of low hardness and poor wear resistance of 40CrNiMoA steel,a heat treatment process was designed,and three different quenching mediums were used,including water,salt solution and oil,to carry out high-frequency quenching and low-temperature tempering heat treatment of 40CrNiMoA steel.The HV-2000 Vickers hardness tester was used to test the surface hardness of the sample after heat treat-ment,and the SFT-2M ball-disc friction and wear testing machine was used to test its wear resistance.The re-sults show that when the quenching medium was salt solution,the tempered martensite was smaller,and the sur-face hardness of the specimen after heat treatment was the highest,reaching 431.2 HV0.2,and the wear was the smallest.After quenching in salt solution,fine tempered martensite can be obtained,resulting in increased hard-ness of 40CrNiMoA steel,less wear of the specimen and enhanced wear resistance.关键词
高频淬火/淬火介质/表面硬度/摩擦磨损性能Key words
high frequency quenching/quenching medium/surface hardness/friction and wear properties分类
金属材料引用本文复制引用
罗杰,李祥,杨旭,韩佳龙,吴韦莉..40CrNiMoA钢组织与耐磨性能研究[J].华东交通大学学报,2025,42(1):105-112,8.基金项目
贵州航天精工制造有限公司与南昌航空大学合作课题(GK202101048) （GK202101048）
