2A12铝合金纳米复合微弧氧化陶瓷层摩擦学性能研究  

Effect of Nano--Particle Additives on Wear Performance of Micro--Arc Oxidation Coating Prepared on 2A12 Aluminmum Alloy

作　　者：邱骥[1] 索相波[2] 李新[1] 朱海燕[1] 

机构地区：[1]装甲兵工程学院装备再制造工程系,北京100702 [2]酒泉卫星发射中心技术部,甘肃兰州732750

出　　处：《中国材料科技与设备》2012年第1期51-53,共3页Chinese Materials Science Technology & Equipment

基　　金：”十二五”装备预先研究项目《装备铝合金表面纳米微弧氧化工程应用关键技术研究》资助项目（513270401）

摘　　要：研究2A12铝合金表面制备含纳米Si（）2颗粒复合微弧氧化陶瓷层，主要考察了不同尺度、不同类型纳米颗粒对陶瓷层摩擦学性能的影响规律。采用扫描电镜观察涂层表面形貌，CETR微米摩擦磨损试验机和白光干涉仪考察复合陶瓷涂层的耐磨性。结果表明，与未添加纳米颗粒的普通微弧氧化层相比，添加20nmSi02、80nmSi02、800nmSiO2后所形成的陶瓷涂层孔隙尺寸和数量均明显减小，并具有较高的耐磨性。Nano--particle SiO2 reinforced composite coatings were prepared on 2A12 aluminum alloy by micro--arc oxidation method. Effect of the size and sorts of nano--particles on tribological property of the coatings was investigated in this paper. The surface morphology and the tribological property were tested by SEM, CETR micro--nano--indenter friction and wear tester and white--light interferometer. The results showed that compared with the common coating without nano--particle addition, the size and the amount of the micro--hole on the composite coatings reinforced with 20nm SiO2, 8Onto SiO2 or 800nm SiO2 particles decreased substantially, and the wear resistance of the micro--arc oxidation composite coatings improved.

关 键 词：铝合金 微弧氧化 纳米 摩擦 

分 类 号：TB443[一般工业技术]