Influence of oxalic acid addition to chromic acid on the anodising of Al 2024 alloy

被引：35
|
作者：
Moutarlier, V
Gigandet, MP
Pagetti, J
Normand, B
机构：
[1] Equipe Corros & Traitements Surface, LCMI, F-25030 Besancon, France
[2] Univ Paris 06, CNRS, LPLE, UPR 15, F-75252 Paris, France
来源：
SURFACE & COATINGS TECHNOLOGY | 2004年 / 182卷 / 01期
关键词：
chromic acid; oxalic acid; Al; 2024; alloys; anodic film growth; morphology; corrosion resistance;
D O I：
10.1016/S0257-8972(03)00875-2
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Influence of oxalic acid (H2C2O4) addition to chromic acid (CrO3) has been examined for the anodising of Al 2024 alloy. Electrochemical tests have been revealed significant dependence on the oxalic acid concentration. The role of electrolyte temperature has also been studied. A beneficial effect has been observed concerning the increase of H2C2O4 addition and temperature. They have affected the oxide film growth, modifying the morphology and improving the corrosion performance of anodic films. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：117 / 123
页数：7
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