摘要
研究了 Ce元素在钛合金阳极氧化中的作用。通过对普通工艺和稀土工艺之间氧化膜微观形貌的对比 ,讨论了 Ce元素对氧化膜完整性的影响。利用能谱分析 ,说明了 Ce元素加入可以使钛合金表面氧化较为充分 ,并且 Ce元素参与了氧化膜的组成。采用局部成分分析法确定了膜层的横向分布范围。对氧化膜截面的SEM图进行分析 ,讨论了 Ce元素对钛合金阳极氧化膜厚度的影响。利用动电位扫描 ,对普通氧化膜和稀土氧化膜的耐点蚀性进行了比较 ,表明 Ce盐的加入可以提高钛合金氧化膜抗点蚀的能力。
The effect of Ce element on Ti\|alloy anodization was studied. The influence of Ce element on the integrality of an oxide film was discussed, through the comparison of SEM micrography between a rare\|earth oxide film and a traditional one. With the energy spectrum analysis of the film, it was shown that the oxidation of Ti\|alloy surface was more sufficient by using rare\|earth anodization than by the traditional oxidation, and there was a certain amount of Ce element in the oxide film. The influence of Ce element on the thickness of the film was presented by analyzing SEM micrography of the transverse section of the oxide film . By potentidynamic polarization, the resistance to pit corrosion was studied. And there was an improvement in the pit\|corrosion resistance of the rare\|earth oxide film.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2002年第1期91-93,共3页
Acta Aeronautica et Astronautica Sinica
基金
国防预研基金 ( 99J12 .2 .1HK0 114 )
高校博士点基金 ( 19990 0 0 6 2 2 )
关键词
CE
氧化膜
耐蚀性
钛合金
阳极氧化
稀土元素
Ce element
oxide film
corrosion resistance
titanium alloy
anodization
