| Cl-浓度对2A12铝合金电化学行为的影响 |
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| 引用本文： | 李涛,吴立凡,李相前,李晓刚. Cl-浓度对2A12铝合金电化学行为的影响[J]. 腐蚀与防护, 2011, 0(4): 256-260,296 |
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| 作者姓名： | 李涛 吴立凡 李相前 李晓刚 |
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| 作者单位： | 内蒙古科技大学材料与冶金工程学院;包钢教育培训中心;北京科技大学材料科学与工程学院; |
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| 基金项目： | 科技部国家科学基础条件平台建设项目(No.2005DKA10400) |
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| 摘 要： | 通过干湿周浸试验、扫描电镜观察和电化学阻抗谱(EIS)测试,研究了2A12铝合金在不同质量浓度NaCl溶液中干湿周浸48 h和480 h后带锈样的电化学行为与规律.试验结果表明,干湿周浸48 h后,低浓度NaCl溶液中2A12铝合金的腐蚀过程主要受电荷转移电阻控制;随浓度增加,其电化学特征转变为受电荷转移电阻和Warb...
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| 关 键 词： | 2A12铝合金 干湿周浸 电化学阻抗谱 点蚀 晶间腐蚀 |
Effect of CI~- Concentration on the Electrochemical Behaviors of 2A12 Aluminum Alloy |
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| LI Tao,WU Li-fan,LI Xiang-qian,LI Xiao-gang. Effect of CI~- Concentration on the Electrochemical Behaviors of 2A12 Aluminum Alloy[J]. Corrosion & Protection, 2011, 0(4): 256-260,296 |
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| Authors: | LI Tao WU Li-fan LI Xiang-qian LI Xiao-gang |
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| Affiliation: | LI Tao~1,WU Li-fan~2,LI Xiang-qian~1,LI Xiao-gang~3 (1.School of Materials & Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010,China,2.Educational Training Center,Bao Tou Iron and Steel Company,3.School of Materials Science and Engineering,University of Science & Technology Beijing,Beijing 100083,China) |
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| Abstract: | The electrochemical behaviors of aluminum alloy 2A12 was investigated using alternate immersion test, scanning electron microscopy(SEM) and electrochemical impedance spectroscopy(EIS) techniques.The results showed that the corrosion process was mainly controlled by charge transfer resistance under the condition of lower Cl~- concentration after 48 h alternate immersion;with increasing the Cl~- concentration,the electrochemical characteristic changed to mixed control of charge transfer resistance and Warburg... |
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| Keywords: | 2A12 aluminum alloy alternate immersion electrochemical impedance spectroscopy(EIS) pitting corrosion intergranular corrosion |
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