| Effect of Na2B4O7 on iron reduction in magnesium alloys AZ31 and AZ91 |
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| 引用本文： | 吴国华 高洪涛 王玮 丁文江. Effect of Na2B4O7 on iron reduction in magnesium alloys AZ31 and AZ91[J]. 中国有色金属学会会刊, 2007, 17(A01): 452-456 |
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| 作者姓名： | 吴国华 高洪涛 王玮 丁文江 |
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| 作者单位： | School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China |
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| 基金项目： | Acknowledgement The present study is funded by the National Basic Research Program of China （973 Program） and National Key -technologies R ＆ D Program. |
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| 摘 要： | Effect of Na2B4O7, a new iron reduction agent, on iron reduction in magnesium alloys AZ31 and AZ91 was studied. The iron contents in the magnesium alloy AZ31 and AZ91 reduce dramatically to less than 0.002% （mass fraction） with the increasing addition of Na2B4O7, and the corrosion resistance of the alloys was greatly improved. According to the thermodynamic analysis and the iron and boron distributions in different parts of the alloy melts, it can be inferred that the mechanism for iron reduction in magnesium alloys by Na2B4O7 processing is that boron atoms combine with iron atoms and settle down in the melting sludge. The XRD result confirms it.
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| 关 键 词： | 抗腐蚀强度 镁合金 铁 防腐材料 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Effect of Na2B4O7 on iron reduction in magnesium alloys AZ31 and AZ91 |
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| WU Guo-hua, GA Hong-tao, WANG Wei, DING Wen-jiang. Effect of Na2B4O7 on iron reduction in magnesium alloys AZ31 and AZ91[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(A01): 452-456 |
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| Authors: | WU Guo-hua GA Hong-tao WANG Wei DING Wen-jiang |
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| Affiliation: | WU Guo-hua, GA0 Hong-tao, WANG Wei, DING Wen-jiang |
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| Abstract: | |
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| Keywords: | Na2B4O7 iron reduction corrosion resistance AZ31 magnesium alloy AZ91 magnesium alloy |
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