AZ91D镁合金微弧氧化的化学前处理工艺性能研究  

Chemical Pretreatment Process Performance Study of AZ91D Magnesium Alloy Microarc Oxidation Ceramics

作　　者：袁建鹏[1,2] 侯伟骜[1,3] 

机构地区：[1]北京矿冶研究总院,北京100160 [2]特种涂层材料及技术北京市重点实验室,北京102206 [3]北京市工业部件表面强化与修复工程技术研究中心,北京102206

出　　处：《热喷涂技术》2015年第4期67-72,共6页Thermal Spray Technology

摘　　要：对经过化学前处理的AZ91D镁合金进行了微弧氧化处理,在其表面制得陶瓷膜层,利用扫描电镜、能谱仪、硬度仪、粗糙度仪等对膜层形貌、厚度和性能进行分析。结果表明,化学前处理后制备的陶瓷膜层与基体结合良好,表面呈微孔形貌,与未进行前处理制备的陶瓷膜层相比,硬度及结合力得到提高,同时表面粗糙度也有所增加。The ceramic membrane was obtained on the surface of the AZ91 D magnesium Alloy after the chemical pretreatment by Microarc Oxidation.The features,thickness and property of the membrane were analyzed by Scanning Electronic Microscope,Energy Disperse Spectroscopy,Hardness tester and surface roughness measuring instrument.The results suggest that,the bonding between the ceramic membrane and the substrate is excellent,with micropores forming on the surface.Compared with the membrane without chemical treatment,its hardness and binding force is improved.At the same time,the surface roughness also increased.

关 键 词：镁合金 微弧氧化 化学前处理 

分 类 号：TG174.4[金属学及工艺—金属表面处理]