PVD技术在镁合金表面防护领域的应用及研究进展  

Application and Development Trend of PVD on the Filed of Magnesium Alloy Surface Protection

作　　者：王彦峰[1] 李争显[1] 杜继红[1] 王宝云[1] 

机构地区：[1]西北有色金属研究院,西安710016

出　　处：《表面技术》2010年第4期94-98,共5页Surface Technology

摘　　要：综述了近年来国内外镁合金表面PVD技术制备的膜层对其耐蚀性的影响研究,提出:PVD膜层能够降低镁合金的腐蚀电流,提高其耐蚀性;造成膜层失效的主要原因是由于膜层中存在的微孔等结构缺陷充当了腐蚀通道;通过膜层体系的结构设计、制备工艺参数优化等方法,可降低膜层结构缺陷、提高膜基体系耐蚀性。This article makes a comprehensive summary about the research of PVD coatings on the corrosion resistance of magnesium alloy at home and abroad in recent years,and put forward that： PVD coatings can improve magnesium alloy＇s corrosion resistance by reducing the corrosion current;The main cause of coating＇s invalidation is due to the structural defects such as pores in the coatings acting as a corrosion channel;The corrosion resistance of coating/substrate system can be enhanced by minimizing these defects through coating＇s structural design,process parameters＇ optimization and so on.

关 键 词：镁合金 物理气相沉积 表面防护 表面改性 膜层 

分 类 号：TG14[一般工业技术—材料科学与工程] TG115.25[金属学及工艺—金属材料]