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首页> 外文会议>International Conference Aluminium Alloys >Investigation of Cerium Salt/Sulfuric Acid Anodizing Technology for 1420 Aluminum Alloy
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Investigation of Cerium Salt/Sulfuric Acid Anodizing Technology for 1420 Aluminum Alloy

机译：1420铝合金铈盐/硫酸阳极氧化技术的研究

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In this paper, the effect of cerium addition agent on the property of anodized coating of 1420 Al alloy has been died by corrosion experiment (immersion test and neutral salt spray test), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and measurement of polarization curves. The result show that only pitting could be observed in all corrosion tests while intergranular corrosion and exfoliation corrosion did not appear on 1420 Al-Li alloys. When organic carboxylic acid S or the cerium (IV) salt was added into sulfuric acid anodizing electrolyte separately, there was no significant improvement in corrosion resistance of anodized film. However, in the case of adding them into sulfuric acid anodizing electrolyte together, the corrosion resistance of anodized film increased greatly owing to synergistic effect. The synergistic effect may relate to the formation of cerium-organic carboxylic acid S complex compound and its effects on film growth and film structure.
机译：在本文中，通过腐蚀实验（浸入式试验和中性盐喷雾试验），扫描电子显微镜（SEM），透射电子显微镜（TEM）和透射电子显微镜（SEM）和透射电子显微镜（TEM）和铈添加剂对1420 Al合金阳极氧化涂层性能的影响。偏振曲线的测量。结果表明，只有在所有腐蚀试验中只能观察到斑点，而晶间腐蚀和去角质腐蚀没有出现在1420 al-Li合金上。当分开加入有机羧酸S或铈（IV）盐氧阳极氧化电解质时，阳极氧化膜的耐腐蚀性无显着改善。然而，在将它们加入硫酸阳极氧化电解质的情况下，由于协同效应，阳极氧化膜的耐腐蚀性大大增加。协同效应可以涉及铈 - 有机羧酸S复合化合物的形成及其对膜生长和薄膜结构的影响。

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