【摘要】 研究了爆炸喷涂Al₂O₃-20%TiO₂涂层与浸树脂石墨进行干滑动摩擦时的磨损性能和磨损机理,并对比分析了Al₂O₃-20%TiO₂和Al₂O₃-40%TiO₂涂层的磨损性能。结果表明:该陶瓷涂层的磨损率随摩擦时间的延长呈先减小后增大的趋势,在相同试验条件下,Al₂O₃-20%TiO₂涂层的耐磨性能优于Al₂O₃-40%TiO₂涂层的;Al₂O₃-20%TiO₂涂层的磨损率随载荷和速度的增大而增大,在大于30 N后磨损率迅速增大;陶瓷涂层的磨损机理主要为粘着磨损。更多还原

【Abstract】 The wear properties and the wear mechanism of detonation-gun sprayed Al₂O₃-20%TiO₂ coating rubbed against the carbon-graphite impregnated resin in the dry sliding friction were mainly discussed.And then the wear properties of Al₂O₃-20%TiO₂ coating were compared with that of Al₂O₃-40%TiO₂ coating.The results indicate that the wear rate of the ceramic coatings decreased firstly and then increased with the prolongation of friction time,the wear resistance of the Al₂O₃-20%TiO₂ coating was better than that of the Al₂O₃-40%TiO₂ coating in the same conditioa The wear rates of the Al₂O₃-20%TiO₂ coating increased with the increase of load and sliding velocity,and the wear rate increased rapidly when the load was above 30 N.The wear mechanism was adhesive wear.更多还原