高频淬火加热时间对35CrMo钢的摩擦磨损性能影响  

Effects of high-frequency quenching heating time on friction and wear properties of 35CrMo steel

作　　者：何闯 刘德涛 孔德军[2] HE Chuang;LIU Detao;KONG Dejun(Jiangsu Yuanfang Power Technology Co.,Ltd.,Changzhou 213021,China;School of Mechanical Engineering,Changzhou University,Changzhou 213164,China)

机构地区：[1]江苏远方动力科技有限公司,江苏常州213021 [2]常州大学机械工程学院,江苏常州213164

出　　处：《材料科学与工艺》2025年第1期72-81,共10页Materials Science and Technology

基　　金：中国煤炭地质总局科技创新项目(ZMKJ-2022-J03-2)。

摘　　要：利用高频淬火技术对35CrMo钢进行了表面处理,分析了加热时间对其物相、微观组织和硬度的影响,并通过磨损试验机考察了摩擦-磨损性能。结果表明,随着加热时间的增加,淬硬层中的奥氏体发生晶界过烧和晶粒粗化现象,而在加热时间为7 s时,淬硬层表面的显微硬度最高、磨损率最低,表明适当的加热时间有利于提高35CrMo钢摩擦性能。在加热时间为6 s时,淬火的35CrMo钢磨损机理以磨粒磨损、氧化磨损为主,伴随着黏着磨损;在加热时间为7 s时,淬火的35CrMo钢磨损机理以磨粒磨损和黏着磨损为主,并伴随着氧化磨损;而当淬火时间为8和9 s时,淬火的35CrMo钢磨损机理以磨粒磨损、黏着磨损和氧化磨损为主。35CrMo steel was processed by high-frequency quenching technology,and the effects of heating time on its phase,microstructure,and hardness were analyzed.The friction and wear performance was also investigated using a wear testing machine.The results show that the austenite on the quench layer occurs grain boundary over burning and grain coarsening with the increase in heating time.When the heating time increases to 7 s,the quench layer has the highest surface hardness and the lowest wear rate,indicating that the appropriate heating time is beneficial for improving the tribological performance of 35CrMo steel.The wear mechanism of quenched 35CrMo steel at the heating time of 6 s is mainly abrasive wear and oxidative wear,accompanied by the adhesive wear.Moreover,the wear mechanism of quenched 35CrMo steel at the heating time of 7 s is mainly abrasive wear and adhesive wear,accompanied by the light oxidative wear.However,those of 35CrMo steel at the heating time of 8 s and 9 s are mainly abrasive wear,adhesive wear and oxidative wear.

关 键 词：高频淬火 35CRMO钢 硬度 磨损率 磨损机理 

分 类 号：TN249[电子电信—物理电子学] TG156.33[金属学及工艺—热处理]