Grain refinement of pure Al with different electric current pulse modes
Grain refinement of pure Al with different electric current pulse modes
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不同电流脉冲模式对纯铝晶粒的细化
DOI：
10.1016/j.matlet.2008.09.036
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发表时间：
2009-01-15
影响因子：
3
通讯作者：
Zhai, Qijie
中科院分区：
文献类型：
--
作者：
Ma, Jianhong;Li, Jie;Zhai, Qijie
对模具内不同位置施加电流脉冲（ECP）对纯铝晶粒细化的比较研究。实验结果表明，不同电极位置施加ECP均产生了细化等轴晶，且在结晶器上下侧壁施加ECP时细化等轴晶面积比例最高。还讨论了ECP的精炼机理以及不同ECP使用方式导致精炼效率不同的原因。 (C) 2008 Elsevier B.V. 保留所有权利。
A comparative study on grain refinement of pure Al by applying electric current pulse (ECP) at different positions in the mould was carried out. The experimental results showed that fine equiaxed grains were generated by exerting ECP at different electrode positions, and the highest proportion of fine equiaxed grain area was obtained when ECP was applied at the upper and lower lateral wall of the mould. The refinement mechanism of exerting ECP and the reasons of different refining efficiency with various ECP employing modes were also discussed. (C) 2008 Elsevier B.V. All rights reserved.