镁合金表面金属涂层的研究进展  

Research Progress of Metal Coatings on the Surface of Magnesium Alloy

作　　者：侯化龙[1,2] 周广宏[2] 章跃[2] 张娜[1] 丁红燕[2] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]淮阴工学院江苏省介入医疗器械研究重点实验室,江苏淮安223003

出　　处：《材料保护》2013年第9期44-47,7,共4页Materials Protection

基　　金：国家自然科学基金(51175212)资助

摘　　要：镁合金具有较好的力学性能,但耐蚀性差,限制了其广泛应用。对镁合金进行适当的表面涂镀处理可提高其耐蚀性。综述了常见的镁合金表面金属涂层制备技术,主要包括Ti,Zn,Al等单质金属涂层和Zn-Al,Ni-P等合金涂层;指出革新前处理工艺,优化镀液配方,开发多元合金镀及复合镀仍是未来的主要研究方向;开发具有高耐蚀性、耐磨性及高硬度的多功能涂层制备技术是未来的研究重点。A review is provided of the research progress of technology for preparing metal coatings on the surface of Mg alloy,where metal coatings such as Ti coating,Zn coating and Al coating,as well as alloy coatings such as Zn-Al coating and Ni-P coating are covered. It is pointed out that Mg alloy possesses good mechanical properties,but its poor corrosion resistance hinders its wide application. This drawback,fortunately,could be overcome by introducing proper coating and / or plating onto the surface of Mg alloy. In the meantime, it is demonstrated that,in terms of future directions of the technologies for preparing coating and / or plating on Mg alloy substrate,more efforts should be made to modify the pretreatment process,to optimize bath composition,and to develop multi-element alloy coating and composite coating. Besides,it is suggested that multifunctional coatings possessing good corrosion resistance and wear resistance as well as high hardness should be focused on in future study of the technology for fabricating coating and / or plating on Mg alloy substrate.

关 键 词：金属涂层制备 镁合金 耐腐蚀性能 

分 类 号：TG174.44[金属学及工艺—金属表面处理]