Effect of Misch Metal on the Corrosion Behavior of AZ91 Magnesium Alloys under Wet-Dry Cycles
文献类型：期刊论文
| 作者 | Zhou Weiguang2; Jia Ruiling2; Zhang Guilong2; Guo Feng2; Zhang Wei1 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 46期号:7页码:1893-1899 |
| 关键词 | magnesium alloys misch metal corrosion wet-dry cycles |
| ISSN号 | 1002-185X |
| 通讯作者 | Jia Ruiling(jrl014014@163.com) |
| 英文摘要 | The microstructure and element distribution of AZ91 alloy were changed by adding the mischmetal of lanthanum and cerium (La, Ce). La or Ce element can be found in various phases of AZ91 alloy with mischmetal addition. Part of them can be dissolved in the alpha-Mg solid solution, while the others formed different intermetallic compounds with chemical composition Al-4(La,Ce) or Al10Ce2Mn7. Al-4(La,Ce) is in acicular shape and Al10Ce2Mn7 is in granular shape. The fraction of beta phase in AZ91 alloy decreased obviously with the addition of mischmetal, and the distribution of Al element transferred from the grain boundaries to grain internal area. The results of the corrosion behavior of AZ91 magnesium alloys with addition of mischmetal in snow-melt agent solution under wet-dry cycles show that a shift of the corrosion potential (E-corr) towards more negative values is observed for all the alloys with mischmetal addition, but their corrosion current densities (I-corr) are much lower than that of the AZ91 alloy. The scanning electrochemical microscopy (SECM) test results reveal that the addition of mischmetal could reduce the number of electrochemical active points on the surface. In addition, the compactness of corrosion product film of magnesium alloy is increased with addition of mischmetal. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000407092900025 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/125043]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jia Ruiling |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Inner Mongolia Univ Technol, Hohhot 010051, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Weiguang,Jia Ruiling,Zhang Guilong,et al. Effect of Misch Metal on the Corrosion Behavior of AZ91 Magnesium Alloys under Wet-Dry Cycles[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46(7):1893-1899. |
| APA | Zhou Weiguang,Jia Ruiling,Zhang Guilong,Guo Feng,&Zhang Wei.(2017).Effect of Misch Metal on the Corrosion Behavior of AZ91 Magnesium Alloys under Wet-Dry Cycles.RARE METAL MATERIALS AND ENGINEERING,46(7),1893-1899. |
| MLA | Zhou Weiguang,et al."Effect of Misch Metal on the Corrosion Behavior of AZ91 Magnesium Alloys under Wet-Dry Cycles".RARE METAL MATERIALS AND ENGINEERING 46.7(2017):1893-1899. |
入库方式： OAI收割
来源：金属研究所
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