Influence of casting module on corrosion behavior of Mg-11Gd-3Y alloy
文献类型：期刊论文
| 作者 | X. B. Liu ; D. Y. Shan ; Y. W. Song ; R. S. Chen ; E. H. Han |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:4页码:903-911 |
| 关键词 | Mg-11Gd-3Y alloy corrosion behavior casting module expandable pattern casting metal casting az91 magnesium alloy mechanical-properties microstructure resistance metal zr |
| ISSN号 | 1003-6326 |
| 中文摘要 | The influences of two kinds of casting modules of metal casting (MC) and expandable pattern casting (EPC) on the corrosion behavior of Mg-11Gd-3Y alloy were studied by electrochemical measurements, scanning electron microscopy (SEM) observation, X-ray diffractometry (XRD) and X-ray photoelectron spectroscopy (XPS) analysis. It is found that the quantity of the Mg(24) (Gd, Y)(5) phase in MC is more than that in EPC due to the cooling rate. There is more alloying element dissolved in the matrix compared with MC. For EPC, the galvanic corrosion effect between the matrix and the Mg(24) (Gd, Y)(5) phase decreases and the corrosion resistance increases compared with the MC. The chief corrosion mode for Mg-11Gd-3Y alloy is pitting corrosion because most of the alloying elements are transformed into intermetallic phases. The average corrosion rate of the MC alloy in the immersion test is five times higher than that of EPC alloy and yttrium is present in the product film, which will provide increased protection for Mg-11Gd-3Y alloy. The electrochemical measurements and immersion test show that the EPC process increases the corrosion resistance compared with the MC Mg-11Gd-3Y alloy. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30543]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. B. Liu,D. Y. Shan,Y. W. Song,et al. Influence of casting module on corrosion behavior of Mg-11Gd-3Y alloy[J]. Transactions of Nonferrous Metals Society of China,2011,21(4):903-911. |
| APA | X. B. Liu,D. Y. Shan,Y. W. Song,R. S. Chen,&E. H. Han.(2011).Influence of casting module on corrosion behavior of Mg-11Gd-3Y alloy.Transactions of Nonferrous Metals Society of China,21(4),903-911. |
| MLA | X. B. Liu,et al."Influence of casting module on corrosion behavior of Mg-11Gd-3Y alloy".Transactions of Nonferrous Metals Society of China 21.4(2011):903-911. |
入库方式： OAI收割
来源：金属研究所
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