【摘要】 本文利用浸渍法在A₃钢表面获得具有装饰效果的硅钼杂多酸转化膜。扫描电镜的表面形貌分析,以及3%NaCl水溶液中阳极极化曲线均证实该膜层具有较好的耐腐蚀效果。XPS和AES的分析结果表明膜层中Fe以Fe（Ⅲ）和Fe（Ⅱ）两种状态存在,Mo在膜层外部以Mo（Ⅵ）存在,内部则以Mo（Ⅵ）和Mo（Ⅳ）西种状态存在。从AES深度分布曲线的组成恒定区求得膜层的组成（A.C.%）为:O 57.4%,Fe 17.1%,Mo 13.5%,Si 8.8%,C 3.2%更多还原

【Abstract】 A decorative chemical conversion film was formed on A₃ mild steel by immersing it in a SiMo heteropoly-acid solution. The SEM photographs and the anodic polarization curves revealed the good anticorrosive effect of the film. The results of XPS and AES analyses showed that Fe existed as Fe（Ⅲ） and Fe （Ⅱ） in the film while Mo as Mo （Ⅵ） in the surface of the film but as Mo （Ⅵ） and Mo （Ⅳ） in the internal layer of the film. The relative atomic percent content（AC%） of the film obtained from the elemental composition constant region of the profile curves by AES was Fe 17. 1%,Mo 13. 5%,Si 8. 8%, O 57.4% and C 3.2% respectively.更多还原