Formation of the solidified microstructure of Mg-Al-Zn alloy under a low-voltage pulsed magnetic field
文献类型：期刊论文
| 作者 | J. W. Fu ; Y. S. Yang |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2011 |
| 卷号 | 26期号:14页码:1688-1695 |
| 关键词 | electric-current pulse austenitic stainless-steel directional solidification pure aluminum morphological instability structure refinement dendritic growth grain-refinement binary alloy stability |
| ISSN号 | 0884-2914 |
| 中文摘要 | Effect of a low-voltage pulsed magnetic field (LVPMF) on the solidified microstructure of Mg-Al-Zn alloy has been investigated. Experimental results show that the solidified structure of Mg-Al-Zn alloy can be remarkably refined and that the morphology of alpha-Mg is transformed from developed dendrite to fine rosette with the application of LVPMF. Magnetization of the solute and solvent in the diffusion layer cannot account for the formation of the rosette alpha-Mg under LVPMF. A model for the formation of rosette alpha-Mg under LVPMF has been developed by analyzing the growth behavior of alpha-Mg dendrite. Morphology change of alpha-Mg dendrite under LVPMF is caused by Joule heat concentrated on the dendrite tip. Accumulation of Joule heat on the dendrite tip melts the local dendrite tip and increases the radius of curvature. The increased radius of curvature at the dendrite tip lowers the growth rate and results in the formation of rosette alpha-Mg. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/30333]  |
| 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 | J. W. Fu,Y. S. Yang. Formation of the solidified microstructure of Mg-Al-Zn alloy under a low-voltage pulsed magnetic field[J]. Journal of Materials Research,2011,26(14):1688-1695. |
| APA | J. W. Fu,&Y. S. Yang.(2011).Formation of the solidified microstructure of Mg-Al-Zn alloy under a low-voltage pulsed magnetic field.Journal of Materials Research,26(14),1688-1695. |
| MLA | J. W. Fu,et al."Formation of the solidified microstructure of Mg-Al-Zn alloy under a low-voltage pulsed magnetic field".Journal of Materials Research 26.14(2011):1688-1695. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。