LZ50钢低温离子渗硫转动微动摩擦学性能研究  

Study on Rotational Fretting Tribological Properties of LZ50 Steel by Low Temperature Ion Sulphuration

作　　者：王运动[1] 罗军[1] 莫继良[1] 刘家浚 朱旻昊[1] 

机构地区：[1]西南交通大学摩擦学研究所牵引动力国家重点实验室,成都610031 [2]清华大学机械工程学院,北京100084

出　　处：《中国表面工程》2010年第4期44-47,共4页China Surface Engineering

基　　金：973计划项目资助(2007CB714704);国家自然科学基金委创新研究群材科学基金资助项目(50821063)

摘　　要：在LZ50钢表面进行低温离子渗硫处理,研究了渗硫层及LZ50钢基体在干态不同角位移幅值下的转动微动磨损行为。在对渗硫层及LZ50钢基体转动微动摩擦动力学特性分析的基础上,对其转动微动损伤行为进行了分析。结果表明:渗硫层结构主要由FeS和FeS2相组成;渗硫层及LZ50钢基体的转动微动运行区域强烈依赖于转动角位移幅值,呈现部分滑移和完全滑移两个微动区域,混合区未观察到,且渗硫层未改变LZ50钢基体的微动运行区域;在整个部分滑移区和滑移区的跑合阶段,由于渗硫层的固体润滑作用,使摩擦因数均低于LZ50钢基材;渗硫层可以显著降低基材的磨损,在部分滑移区损伤轻微,在滑移区的损伤机制主要表现为剥层、磨粒磨损和氧化磨损。Sulfide layers were prepared on the surface of LZ50 steel by low temperature ion sulphurization ion process. Rotational fretting wear tests of the sulfide layers and its LZ50 steel substrate were carried out under different rotational angular displacement amplitudes. The frictional kinetics of rotational fretting and the characteristic of wear damage behaviors for the sulfide layers and its LZ50 steel substrate were discussed in detail. The results indicated that the sulfide layers were composed of FeS and ...

关 键 词：摩擦磨损 转动微动 低温离子渗硫 渗硫层 

分 类 号：TG156.84[金属学及工艺—热处理]