爆炸喷涂Al2O3-20%TiO2涂层与浸树脂石墨摩擦副的磨损行为
Wear Behavior of Friction Pairs of Detonation-Gun Sprayed Al2O3-20%TiO2 Coating and Carbon-Graphite Impregnated Resin
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.
陶瓷涂层
干滑动摩擦
粘着磨损
detonation-gun spraying
ceramic coating
dry sliding friction
adhesive wear
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 condition.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.
中图分类号 TG148 TG174.442
所属栏目 材料性能及其应用
基金项目
收稿日期 2009/6/11
修改稿日期 2010/3/12
网络出版日期
作者单位点击查看
备注伍俏平(1981-),男,湖南娄底人,博士研究生.
引用该论文: WU Qiao-ping,DENG Zhao-hui,LU Fang-xia. Wear Behavior of Friction Pairs of Detonation-Gun Sprayed Al2O3-20%TiO2 Coating and Carbon-Graphite Impregnated Resin[J]. Materials for mechancial engineering, 2010, 34(7): 70～73
伍俏平,邓朝晖,鲁方霞. 爆炸喷涂Al2O3-20%TiO2涂层与浸树脂石墨摩擦副的磨损行为[J]. 机械工程材料, 2010, 34(7): 70～73
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【7】WILSDORF D K.Flash temperature due to friction and joule heat at asperity contacts[J].Wear,1985,105(3):187-198.
【8】WANG Yu-shu,STEPHEN M H.Wear and wear transition modeling of ceramic[J].Wear,1996,195(1/2):35-46.
【9】WANG Yu-shu,STEPHEN M H.Wear and wear transition mechanisms of ceramics[J].Wear,1996,195(1/2):112-122.
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【12】DECKMAN D E,JAHANMIR S,HSU S M.Wear mechanisms of α-alumina lubricated with a paraffin oil[J].Wear,1991,149(1/2):155-168.
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