表面技术2012，Vol.41Issue(6)：47-50,4.
AZ91镁合金表面Ce-Mn转化膜组织及性能表征
Characterization of Microstructure and Anti-corrosion Resistance of Ce-Mn Chemical Conversion Coating on AZ91 Magnesium Alloy
摘要
Abstract
Ce-Mn chemical conversion coating was prepared on AZ91 magnesium alloy at room temperature. The effects of Ce(NO3)3 and KMnO4 concentrations on the corrosion resistance of conversion coating were investigated by the single factor experiment and the optimum concentrations were obtained. The conversion coating structures and compositions were studied. The anti-corrosion mechanism of Ce-Mn coating on magnesium alloy was investigated through electrochemical impedance spec-troscopy ( EIS). The results show that Ce-Mn conversion coating is mainly composed of oxide or hydroxide of Ce, Mn and litde Mg with amorphous structure. The Ce-Mn conversion coating can play better anti-corrosion to magnesium alloy.关键词
镁合金/Ce-Mn转化膜/组织成分/耐蚀性Key words
magnesium alloy/ Ce-Mn conversion coating/ composition/ corrosion resistance分类
矿业与冶金引用本文复制引用
姚泽江,盘艳红,杜军,罗鹏,宇文惠惠..AZ91镁合金表面Ce-Mn转化膜组织及性能表征[J].表面技术,2012,41(6):47-50,4.基金项目
华南理工大学学生研究计划(SRP)项目(2011-126) （SRP）
