Microstructure evolution of AZ91D magnesium alloy during semi-solid isothermal heat treatment under direct current
文献类型：期刊论文
| 作者 | Zhou, Q; Yang, YS; Tang, JL; Hu, ZQ |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2006 |
| 卷号 | 42期号:1页码:28-34 |
| 关键词 | magnesium alloy AZ91D semi-solid alloy isothermal heat treatment direct current |
| ISSN号 | 0412-1961 |
| 通讯作者 | Yang, YS() |
| 英文摘要 | The influences of direct current density, heating temperature, and holding time on the microstructure evolution of magnesium alloy AZ91D during semi-solid isothermal heat treatment were studied, and the related mechanism was also discussed. When heating temperature and holding time are constant, with the increment of current density the primary phase becomes small and smooth. But if current density is too high, the primary grains become coarser. Direct current can accelerate the course of semi-solid isothermal heat treatment and improve globular effect of dendrites obviously. It is proposed that the activation energy is increased by direct current, so the diffusivity of solute atoms is increased, which accelerates the microstructure evolution. The effect of electromigration, Joule heat and Peltier heat caused by direct current will promote remelting and globuling of dendrites. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000235687800006 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/87982]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, YS |
| 作者单位 | Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Q,Yang, YS,Tang, JL,et al. Microstructure evolution of AZ91D magnesium alloy during semi-solid isothermal heat treatment under direct current[J]. ACTA METALLURGICA SINICA,2006,42(1):28-34. |
| APA | Zhou, Q,Yang, YS,Tang, JL,&Hu, ZQ.(2006).Microstructure evolution of AZ91D magnesium alloy during semi-solid isothermal heat treatment under direct current.ACTA METALLURGICA SINICA,42(1),28-34. |
| MLA | Zhou, Q,et al."Microstructure evolution of AZ91D magnesium alloy during semi-solid isothermal heat treatment under direct current".ACTA METALLURGICA SINICA 42.1(2006):28-34. |
入库方式： OAI收割
来源：金属研究所
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