高频往复条件下M42高速钢干摩擦特性研究  

Investigations on Friction and Wear Characteristics of M42 High Speed Steel under High Frequency Reciprocating Condition

作　　者：包磊 周燕飞[1] BAO Lei;ZHOU Yanfei(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2021年第3期54-57,共4页Machine Building & Automation

摘　　要：利用高频往复式摩擦试验机,设计正交试验方案,研究法向载荷、工作温度、往复频率和表面渗氮处理对M42高速钢(HSS)摩擦磨损性能的影响,利用扫描电镜(SEM)观察摩擦磨损表面微观形貌,并使用能谱分析功能(EDS)统计磨损微区的元素种类及含量,进而推断磨损机制。结果表明:在高频往复干滑动条件下,往复频率对摩擦系数的影响最显著,表面有渗氮层对磨损量的影响最显著,摩擦系数和磨损量与工作温度和往复频率呈负相关,与法向载荷呈正相关。The orthogonal test plan was carried out to investigate the effects of normal load,temperature,reciprocating and surface nitriding on the friction and wear properties of M42(HSS)by using a high frequency reciprocating tribo-tester.Morphologies of the worn surface was analyzed by SEM,and the type and the content of elements in the micro area of wear were calculated by EDS.According to the range analysis,it is found that the reciprocating frequency has the greatest effect on the friction coefficient,while surface nitriding has the most significant effect on the wear mass.The friction coefficient and wear mass are negatively correlated with temperature and reciprocating frequency,and positively correlated with load.

关 键 词：高频往复 干摩擦 M42高速钢 摩擦磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]