微弧氧化和化学氧化处理镁合金的耐蚀性研究

A Comparison of Corrosion Resistance between Magnesium Alloys Treated by Micro-arc and Chemical Oxidation

通过电化学分析和盐雾腐蚀试验,对镁合金微弧氧化和黑色化学氧化后表面膜的耐蚀性能进行了比较。结果表明:镁合金经过微弧氧化和黑色化学氧化后,耐蚀性能均有提高,但是黑色化学氧化后镁合金的耐蚀性提高更为显著。

A comparison of corrosion behavior is made between magnesium alloy surface oxide films formed by micro-arc and chemical black oxidation with electrochemical method and CASS. The results show that magnesium alloy can be improved in corrosion resistance both by microarc oxidation and chemcal black oxidation, but more obviously by the latter.