水介质润滑下车轮钢磨损机制研究  

Study on Wear Mechanism of Wheel Steel under Water Medium Condition

作　　者：郭俊[1] 王文健[1] 王蕴华[1] 刘启跃[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室摩擦学研究所,四川成都610031

出　　处：《润滑与密封》2009年第11期1-4,共4页Lubrication Engineering

基　　金：高等学校博士学科点专项科研基金项目(20060613017);四川省应用基础基金项目(2008JY0066);国家973计划资助项目(2007CB714702)

摘　　要：利用往复滚动试验装置,研究了水介质作用下车轮钢的往复滚动摩擦磨损机制。结果表明:接触界面存在水介质条件下的车轮钢摩擦因数明显低于干态工况下的摩擦因数;水介质润滑条件下车轮钢磨损以磨粒磨损为主,水介质的存在减小了车轮钢表面的磨损,同时减轻了车轮钢表面的剥离损伤。The rolling friction and wear mechanism of wheel steel was investigated under water medium condition using a reciprocating roiling testing apparatus. The results show that the friction coefficient of wheel steel under water medium condition is less than that under dry condition. The abrasive wear is dominant during the wear process of wheel steel. The water medium would decrease significantly wear of wheel steel and alleviate the spalling damage of wheel steel .

关 键 词：车轮钢 摩擦 磨损机制 水介质 

分 类 号：TH117[机械工程—机械设计及理论]