摘要
以AZ31镁合金为基体,经一系列处理后化学镀镍再电沉积Ni-TiO2复合镀层。比较了采用三种不同搅拌方式制备的Ni-TiO2复合镀层的沉积速率、表面形貌、显微硬度及耐蚀性。结果表明:采用间歇磁力搅拌、间歇超声波搅拌制备的Ni-TiO2复合镀层的性能比采用连续磁力搅拌制备的Ni-TiO2复合镀层的性能好。尤其是采用间歇超声波搅拌制备的Ni-TiO2复合镀层,其显微硬度和耐蚀性相比AZ31镁合金均大幅提高。
Electroless nickel plating was carried out on AZ31 magnesium alloy after a series of treatment,and Ni-Ti02 composite coating was electrodeposited on electroless nickel coating.The deposition rate,surface morphology,microhardness and corrosion resistance of the Ni-Ti02 composite coating prepared by three different stirring methods were compared.The results showed that the properties of the Ni-Ti02 composite coating prepared by intermittent magnetic stirring or intermittent ultrasonic stirring were better than those of the Ni-Ti02 composite coating prepared by continuous magnetic stirring,especially the Ni-Ti02 composite coating prepared by intermittent ultrasonic stirring,its microhardness and corrosion resistance were significantly improved compared with those of AZ31 magnesium alloy.
作者
杨少波
YANG Shaobo(Department of Automotive Engineering,Dezhou Vocational and Technical College,Dezhou 253034,China)
出处
《电镀与环保》
CAS
CSCD
北大核心
2019年第5期10-13,共4页
Electroplating & Pollution Control
基金
2017年山东省职业教育教学改革研究课题(2017118)
2018年山东省教育教学研究课题(2018JXY2015)
2018—2020年教育部职业院校信息化教学指导委员会信息化教学研究课题(2018LXB0017)
关键词
Ni-TiO2复合镀层
搅拌方式
镁合金
组织结构
耐蚀性
Ni-TiO2 composite coating
stirring methods
magnesium alloy
microstructure
corrosion resistance
