干摩擦条件下Al_2O_3基复合材料的摩擦磨损特性  

Friction and Wear Behaviors of Al_2O_3 Matrix Composites under Dry Sliding Condition

作　　者：孟凡英[1] 郭绍义[1] 李兴俊[1] 杨金林[1] 

机构地区：[1]浙江理工大学表面工程研究所,浙江杭州310018

出　　处：《机械工程材料》2008年第8期68-70,共3页Materials For Mechanical Engineering

摘　　要：以用SiC、Ti(CN)和ZrO2颗粒增韧的三种Al2O3基复合材料为研究对象,利用销盘式摩擦磨损试验机研究了它们的摩擦磨损性能,通过扫描电子显微镜对其磨损形貌进行了观察和分析。结果表明:在本试验条件下,Al2O3基复合材料的耐磨性能与添加剂的种类有关,其耐磨性能好坏顺序为Al2O3/Ti(CN)、Al2O3/SiC、Al2O3/ZrO2;Al2O3/SiC复合材料的磨损机理主要为疲劳磨损和脆性断裂,Al2O3/ZrO2和Al2O3/Ti(CN)复合材料的磨损机理主要为磨粒磨损。The friction and wear properties of three kinds of Al2O3 matrix composites strengthened by SiC,Ti(CN) and ZrO2 particles were investigated using a pin-on-disk tribometer.SEM was used to observe the friction morphology of the ceramic surface.Under this experiment conditions additives had a profound effect on the wear resistance of the composites.The sequence of wear resistance was Al2O3/ZrO2<Al2O3/SiC<Al2O3/Ti(CN).Fatigue wear and brittle fracture were the predominant wear mechanisms for Al2O3/SiC.The ...

关 键 词：Al2O3基复合材料 干摩擦 磨损机理 

分 类 号：TH117.1[机械工程—机械设计及理论]