摘要
在AA6061铝合金表面形成了钛锆膜。用SEM/EDX和XPS分析了钛锆膜的表面形貌及成分.采用电化学测试和中性盐雾测试研究了钛锆膜的耐蚀性能.结果表明,钛锆膜是由Zr-Ti-F-O-Al等元素组成的复合物;钛锆膜的耐蚀性能与基体相比有明显的提高,但不及六价铬酸盐膜;经72小时中性盐雾腐蚀,腐蚀面积小于10%.
The Zr and Ti containing passivation films were prepared on the surface of AA6061 aluminum alloy for corrosion protection. The surface morphology and composition of the films were investigated by SEM/EDX and XPS and their corrosion performance was examined by electrochemical test in 5% NaCl solution and salt spay test. The results show that Zr and Ti containing passivation films are complex com- pounds composed of Zr-Ti-F-O-Al rather than pure oxides, however their protectiveness is inferior to the passivation films with chromate （Ⅵ）.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2008年第6期420-423,共4页
Corrosion Science and Protection Technology
关键词
铝合金
钛锆膜
钝化膜
防腐蚀
aluminum alloys
Zr-Ti films
passivation films
corrosion resistance
