| Corrosion and electrochemical behavior ofAZ31D magnesium alloys in sodium chloride |
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| 引用本文： | 单大勇 周婉秋 韩恩厚 柯伟. Corrosion and electrochemical behavior ofAZ31D magnesium alloys in sodium chloride[J]. 中国有色金属学会会刊, 2006, 16(A03): 1789-1792 |
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| 作者姓名： | 单大勇 周婉秋 韩恩厚 柯伟 |
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| 作者单位： | [1]Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China [2]College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| 基金项目： | Foundation item： Project （2001AA331050） supported by the Hi-tech Research and Development Program of China |
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| 摘 要： |
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| 关 键 词： | 电化学 金属腐蚀 镁合金 有色金属 X光线衍射 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Corrosion and electrochemical behavior ofAZ31D magnesium alloys in sodium chloride |
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| SHAN Da-yong, ZHOU Wan-qiu , HAN En-hou, KE Wei. Corrosion and electrochemical behavior ofAZ31D magnesium alloys in sodium chloride[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(A03): 1789-1792 |
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| Authors: | SHAN Da-yong ZHOU Wan-qiu HAN En-hou KE Wei |
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| Abstract: | The corrosion and electrochemical behavior of extruded AZ31D magnesium alloys in NaCl solution were investigated using SEM, XRD and electrochemical method. It is found that AZ31D is susceptive to Cl^- ion, and the open circuit potential shifts to more negative values with increasing chloride concentration. Pitting occurs at corrosion potential and corrosion area enlarges with enhanced polarization. Tafel slopes of the cathode branches in different testing solution are almost the same. Cl^- concentration affects cathode course slightly. High frequency capacitive loops shrink with the increase of Cl^- concentration. Corrosion initiates from the grain boundary and spreads to entire surface with time. |
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| Keywords: | AZ31D magnesium alloys corrosion behavior chloride ion |
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