Improvement of protection performance of Mg-rich epoxy coating on AZ91D magnesium alloy by DC anodic oxidation

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• 作者：Xiangyu Lu^a ; ^b ; ^{luxiangyu2013@163.com} ; Xingguo Feng^c ; Yu Zuo^d ; Pei Zhang^e ; Chuanbo Zheng^a ; ^{15952802516@139.com}
• 关键词：Magnesium alloy ; Anodic oxidation ; Organic coatings ; EIS
• 刊名：Progress in Organic Coatings
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：104
• 期：Complete
• 页码：188-198
• 全文大小：3937 K
• 卷排序：104

文摘

An anodic oxidation film is fabricated on AZ91D magnesium alloy by the simple DC anodic oxidation. The adhesion of the Mg-rich primer on AZ91D substrate was dramatically increased by the anodic oxidation film. The anodic oxidation film/Mg-rich coating system impedes the electrolyte permeation to the substrate and hinders the expansion of corrosion area on the substrate. The anodic oxidation film yields a significant increase in the lifetime of the anodic oxidation film/Mg-rich coating system.