ER8C高速车轮钢摩擦磨损性能研究

An Investigation on Wear Property of ER8C Wheel Steel under Pure Rolling Condition

本文利用GMP-30滚动摩擦磨损试验机研究ER8C高速车轮钢材料的滚动摩擦磨损性能。结果表明,摩擦磨损过程中,ER8C车轮钢在表面形成波磨;经过不同转数磨损后,ER8C车轮钢试样表面都形成残余压应力;随着磨损周次的增加,表面残余压应力是逐渐增加的;不同磨损周次时,试样表面的轴向残余压应力大于其周向残余压应力,且试样表面波谷处的周向和轴向残余应力都大于波峰处的残余应力。

In this paper,the wear property of ER8 wheel steel under pure rolling condition is studied by GMP-30 wear tester.The results show the surface residual stress of ER8C wheel steel are increased with the increase of cycles.The axial residual compressive stress on the surface of the sample is greater than the circumferential residual compressive stress.The residual stress at trough is higher than that at crest.