| The influence of electric current pulses on the microstructure of magnesium alloy AZ91D |
| Yang, YS; Zhou, Q; Hu, ZQ
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| 通讯作者 | Yang, YS(ysyang@imr.ac.cn)
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| 2005
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| 发表期刊 | MAGNESIUM - SCIENCE, TECHNOLOGY AND APPLICATIONS
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| ISSN | 0255-5476
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| 卷号 | 488-489页码:201-204 |
| 摘要 | The microstructure evolution of magnesium alloy AZ91D solidified with different electric current pulses and cooling rates was investigated and a new method, Low-voltage Electric Current Pulses (LVECP), to produce semi-slurry magnesium alloy was developed in this paper. The experimental results showed that the electric current pulses during solidification changed morphology of dendrites and the equiaxed, non-dendritic grains formed. The size of the primary alpha-Mg particles in semi-solid AZ91D alloy and the sphericity of the particles decreased with increase of discharging the voltage and treating time of LVECP. The increase of the cooling rate during the solidification of AZ91D alloy with LVECP promoted the formation of finer a-Mg particles, but the value of the sphericity of the particles rised. The formation of equiaxed, nondendritic structure by LVECP might be attributed to the electric current pulses increase the nucleation rate, restrained growth of the dendrites, and made dendrite arms remelted during the solidification of AZ91D alloy. |
| 关键词 | non-dendritic structure
solidification
semi-solid slurry
electric current pulse
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS研究方向 | Materials Science
; Metallurgy & Metallurgical Engineering
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| WOS类目 | Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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| WOS记录号 | WOS:000230390900045
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| 出版者 | TRANS TECH PUBLICATIONS LTD
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/82072
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| 专题 | 中国科学院金属研究所
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| 通讯作者 | Yang, YS |
| 作者单位 | Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
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推荐引用方式
GB/T 7714 |
Yang, YS,Zhou, Q,Hu, ZQ. The influence of electric current pulses on the microstructure of magnesium alloy AZ91D[J]. MAGNESIUM - SCIENCE, TECHNOLOGY AND APPLICATIONS,2005,488-489:201-204.
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| APA |
Yang, YS,Zhou, Q,&Hu, ZQ.(2005).The influence of electric current pulses on the microstructure of magnesium alloy AZ91D.MAGNESIUM - SCIENCE, TECHNOLOGY AND APPLICATIONS,488-489,201-204.
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| MLA |
Yang, YS,et al."The influence of electric current pulses on the microstructure of magnesium alloy AZ91D".MAGNESIUM - SCIENCE, TECHNOLOGY AND APPLICATIONS 488-489(2005):201-204.
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