摘要
镁合金表面化学处理的方法包括:铬酸盐转化、磷酸盐转化、氟锆酸盐转化、锡酸盐转化、稀土转化等。处理后的转化膜存在孔隙,有微裂纹,需要进行封孔处理,可通过溶胶改善镁合金的转化膜。对涂覆后的化学转化膜进行热处理或采用微弧氧化处理,可以提高溶胶与膜层的结合力与耐蚀性。
The chemical methods for treating magnesium alloy surface include chromate conversion,phosphate,fluorozirconate,stannate,rare earth conversions and so on.The treated conversion coatings have pores and micro-cracks,so a sealing treatment is needed.The conversion coating of magnesium alloy which has a certain porosity can be improved by sol.Through heat treatment or MAO of the coated chemical conversion film,the binding strength between sol and the film as well as the corrosion resistance of the film can be improved..
出处
《电镀与环保》
CAS
CSCD
北大核心
2011年第6期1-4,共4页
Electroplating & Pollution Control
关键词
镁合金
化学转化膜
溶胶
耐蚀性
热处理
结合力
微弧氧化
magnesium alloy
chemical conversion film
sol
corrosion resistance
heat treatment
binding strength
MAO
