Cu-La_2O_3复合材料的摩擦磨损特性  

Wear Behavior of Cu-La_2O_3 Composite

作　　者：郑润国[1] 战再吉[1] 王文魁[1] 

机构地区：[1]燕山大学,河北秦皇岛066004

出　　处：《稀有金属材料与工程》2010年第A01期293-295,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金委员会重点项目(50731005)

摘　　要：采用内氧化法制备Cu-La2O3复合材料。以该复合材料为销试样,轴承钢为盘试样,进行载流条件下的高速摩擦磨损试验,并对销试样摩擦表面进行微观形貌分析。结果表明:在试验条件下,Cu-La2O3复合材料的磨损率随电流的增加而增大,随载荷增加先降低后增加。复合材料的干滑动摩擦磨损机制主要是磨粒磨损、粘着磨损及电弧侵蚀磨损。The Cu-La2O3 composites were prepared by internal oxidation. Effects of electrical current and applied load on the frictional characteristics of the composites and copper against GCrl 5 bear steel were investigated and compared. The results show that the wear rate of Cu-La2O3 composites increases with increasing of electrical current. However, the wear rate of the composites first decreases and then increases with increasing applied load. The main wear mechanisms for Cu-La2O3 composites are of abrasion, adhesion and electrical erosion.

关 键 词：Cu-La2O3复合材料 电流 磨损率 磨损机制 

分 类 号：TB302.3[一般工业技术—材料科学与工程]