Effect of precipitation on internal friction of AZ91 magnesium alloy
文献类型：期刊论文
| 作者 | S. W. Liu ; H. C. Jiang ; X. Y. Li ; L. J. Rong |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2010 |
| 卷号 | 20页码:S453-S457 |
| 关键词 | precipitation solutionization isothermal treatment aging internal friction mg behavior |
| ISSN号 | 1003-6326 |
| 中文摘要 | The effect of precipitation on the internal friction (IF) of AZ91 magnesium alloy was investigated by using X-ray diffraction (XRD) analysis, scanning electron microscope (SEM) observation, and dynamic mechanical analysis (DMA). Six different states of alloy were prepared by applying different heat treatment processes: as-cast, in-complete solid solution, complete solid solution, micro-precipitation, continuous precipitation and continuous-discontinuous precipitation. It was found that the internal friction of in-completely solid-solutionized, completely solid-solutionized and micro-precipitated specimens showed a similar characteristic, and the grain boundary relaxation is completed depressed due to the Al atoms supersaturated in the alpha-Mg solution. However, a thermal relaxation internal friction peak was observed for continuously precipitated and continuously-discontinuously precipitated specimens at around 438 K and frequency of about 1 Hz, which was attributed to the grain boundaries relaxation. Furthermore, it was found that the relaxation of the beta-Mg(17)Al(12)/alpha-Mg phase interfaces should give its contribution to the background internal friction in the as-cast, continuously precipitated and continuously-discontinuously precipitated specimens. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31307]  |
| 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 | S. W. Liu,H. C. Jiang,X. Y. Li,et al. Effect of precipitation on internal friction of AZ91 magnesium alloy[J]. Transactions of Nonferrous Metals Society of China,2010,20:S453-S457. |
| APA | S. W. Liu,H. C. Jiang,X. Y. Li,&L. J. Rong.(2010).Effect of precipitation on internal friction of AZ91 magnesium alloy.Transactions of Nonferrous Metals Society of China,20,S453-S457. |
| MLA | S. W. Liu,et al."Effect of precipitation on internal friction of AZ91 magnesium alloy".Transactions of Nonferrous Metals Society of China 20(2010):S453-S457. |
入库方式： OAI收割
来源：金属研究所
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