(1. 重慶理工大學 材料科學與工程學院，重慶 400050;
2. 中國科學院 金屬研究所 國家腐蝕工程中心，沈陽 100016)
摘 要: 綜述鎂合金化學轉(zhuǎn)化膜：鉻酸鹽轉(zhuǎn)化膜、磷酸鹽轉(zhuǎn)化膜、磷酸鹽−高錳酸鹽轉(zhuǎn)化膜、錫酸鹽轉(zhuǎn)化膜、稀土轉(zhuǎn)化膜、植酸轉(zhuǎn)化膜等處理方法的工藝特點。討論磷酸鹽轉(zhuǎn)化膜的成膜原理及工藝，分析這些化學轉(zhuǎn)化工藝存在的不足，并展望鎂合金化學轉(zhuǎn)化膜的研究前景。
關(guān)鍵字: 鎂合金；化學轉(zhuǎn)化膜；磷酸鹽；錫酸鹽；稀土；腐蝕
（1. School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400050, China;
2. Environmental Corrosion Center, Institute of Metals Research, Chinese Academy of Sciences,
Shenyang 110016, China）
Abstract: The state-of-the-art processes of chemical conversion films on magnesium alloy such as chromate, phosphate, stannate, rare-earth, phosphate-permanganate and phytate were reviewed. The emphasis on the mechanism of the formation and the processes of the phosphate conversion coatings were discussed. The disadvantages of the processes of the various coatings were analyzed. And the developmental trends of chemical conversion coatings on magnesium alloys were proposed.
Key words: magnesium alloy; chemical conversion coating; phosphate; stannate; rare earth; corrosion
