【作者】 崔晶； 陈跃； 杜三明； 邱明； 张永振；

【Author】 Cui Jing Chen Yue Du Sanming Qiu Ming Zhang Yongzhen (Institute of Material Science and Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China)

【机构】 河南科技大学材料科学与工程学院；

【摘要】 本文以CrNiMo钢和H96黄铜组成配副,利用MMS-1G型高温高速摩擦磨损试验机进行摩擦实验,研究了氮气气氛环境中滑动速度、接触压力等参数对CrNiMo钢摩擦学特性的影响规律。应用JSM- 5610LV型扫描电子显微镜(SEM)观察试样摩擦表面的磨损形貌,采用EDAX能谱分析仪(EDS)来分析磨损表面主要成分,以分析其磨损机理。结果表明:在氮气气氛下,随着滑动速度的增大,摩擦系数减小,磨损率增大;随着载荷的增大,摩擦系数缓慢减小,磨损率急剧增大,这种趋势在速度较高时更为明显;在逐步增加滑动速度与载荷的过程中,摩擦副的磨损机制逐渐由粘着磨损转变为磨粒磨损和粘着磨损共同作用。更多还原

【Abstract】 By using MMS-1G pin-on -disk high temperature and high speed friction and wear tester,effects of different sliding speed and contact pressure on the tribological properties of CrNiMo steel were investigated.The morphologies of worn surface of pin specimen and the main element of debris were studied by using JSM -5610LV SEM and EDS. The results indicate that the friction coefficient decreased and the wear rates increased as sliding speed increasing;the friction coefficient decreased slowly and the wear rates increased rapidly,this trend is obviously under high speed condition.Wear mechanism changed from adhesive wear to adhesive wear and abrasive wear with sliding speed and contact pressure increasing.更多还原