| Development of microarc oxidation process to improve corrosion resistance on AZ91HP magnesium alloy |
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| 引用本文： | 张荣发 单大勇 韩恩厚 郭世柏. Development of microarc oxidation process to improve corrosion resistance on AZ91HP magnesium alloy[J]. 中国有色金属学会会刊, 2006, 16(B02): 685-688 |
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| 作者姓名： | 张荣发 单大勇 韩恩厚 郭世柏 |
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| 作者单位： | [1]Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China [2]Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| 摘 要： | A new anodizing process, which does not contain chromate but can improve the corrosion resistance of magnesium alloys significantly, was developed using a microarc power supply. Surface morphology was observed and the coating was compact and ceramic-like. In addition, the corrosion resistance of samples before and aider anodization by the new process and a method in US Patent 5470664 was compared by potentiodymaic polarization curves, electrochemical impedance spectroscopy （EIS） and salt spray test. The results show that the anodization can improve the corrosion resistance of magnesium alloy. The samples obtained by the new process and the method mentioned in the US Patent 5470664 achieve 9 and 7 rates aider 336 h salt spray test, respectively.
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| 关 键 词： | 镁合金 耐蚀性 微电弧氧化 阳极化处理 |
| 收稿时间： | 2006-04-10 |
| 修稿时间： | 2006-04-25 |
Development of microarc oxidation process to improve corrosion resistance on AZ91HP magnesium alloy |
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| ZHANG Rong-fa, SHAN Da-yong, HAN En-hou, GUO Shi-bo. Development of microarc oxidation process to improve corrosion resistance on AZ91HP magnesium alloy[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(B02): 685-688 |
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| Authors: | ZHANG Rong-fa SHAN Da-yong HAN En-hou GUO Shi-bo |
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| Abstract: | |
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| Keywords: | magnesium alloy corrosion resistance microarc oxidation |
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