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Electrochemical behaviors of anodic alumina sealed by Ce-Mo in NaCl solutions 被引量：2

Electrochemical behaviors of anodic alumina sealed by Ce-Mo in NaCl solutions
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摘要 The elimination of toxic materials in sealing methods for anodic films on 1070 aluminum alloy was studied. The new process uses chemical treatments in cerium solution and an electrochemical treatment in a molybdate solution. Potentiodynamic polarization and electrochemical impedance spectroscopy(EIS) were used to study the influences of sealing methods on the corrosion behavior of anodic films in NaCl solutions. The results show that the Ce-Mo sealing makes the surface structure and morphology of anodic films uniform and compact. Ce and Mo produce a cooperative effect to improve the corrosion resistance of anodic films. Anodic films sealed by Ce-Mo provide high corrosion resistance both in acidic and basic solutions. The elimination of toxic materials in sealing methods for anodic films on 1070 aluminum alloy was studied. The new process uses chemical treatments in cerium solution and an electrochemical treatment in a molybdate solution. Potentiodynamic polarization and electrochemical impedance spectroscopy（EIS） were used to study the influences of sealing methods on the corrosion behavior of anodic films in NaCI solutions. The results show that the Ce-Mo scaling makes the surface structure and morphology of anodic films uniform and compact. Ce and Mo produce a cooperative effect to improve the corrosion resistance of anodic films. Anodic films sealed by Ce-Mo provide high corrosion resistance both in acidic and basic solutions.
作者 田连朋 赵旭辉 赵景茂 张晓丰 左禹
机构地区 School of Materials Science and Engineering
出处 《中国有色金属学会会刊：英文版》 EI CSCD 2006年第5期1178-1183,共6页 Transactions of Nonferrous Metals Society of China
基金 Project(50571006) supported by the National Natural Science Foundation of China
关键词 铝合金 阳极镀层 密封 电化学阻抗谱 NACL溶液 1070 aluminum alloy anodic film sealing electrochemical impedance spectroscopy
分类号 TG113.2 [金属学及工艺—物理冶金]
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二级参考文献19

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共引文献52

同被引文献14

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中国有色金属学会会刊：英文版
2006年 第5期

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