载流条件下铬青铜/3D碳/碳复合材料摩擦副的摩擦磨损性能  

Tribology Performance of Cu-C/C Composites with and without Current

作　　者：沈向前[1] 孙乐民[2] 张永振[2] 

机构地区：[1]洛阳工业高等专科学校机械系,河南洛阳471003 [2]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《润滑与密封》2006年第1期72-74,共3页Lubrication Engineering

摘　　要：以3D碳/碳复合材料为销试样、铬青铜QCr0.5为盘试样进行了载流条件下的干滑动摩擦磨损试验。通过对有、无电流条件下销试样磨损量大小和摩擦因数影响度的比较,以及对销试样摩擦表面进行的微观形貌分析,结果表明,电流对铬青铜/3D碳/碳复合材料摩擦副的干摩擦行为具有显著的影响,并且由于电场、摩擦热、电弧热的共同作用,在销试样表层发生了磨粒磨损和氧化磨损。At normal temperature, the dry sliding friction experiments were carried out on a pin-on-disc tribometer under different electric currents, with C/C composites as pin and QCrO. 5 as disc. Through the comparison of weight loss and the effect of friction coefficient and the analysis of the microsurface of the couple, results show that the current has a notable effect on the tribology of Cu-C/C couple. In the high speed sliding with large current, oxidation of carbon material affects directly the wear course due to the high temperature;withourt electrical current, the effect of load and sliding on the wear rate can be described by Archard ＇ s wear equation.

关 键 词：载流磨损 磨损率 载电流 电润滑 

分 类 号：TH117.1[机械工程—机械设计及理论]