Superplasticity of Mg-5.8Zn-1Y-Zr alloy sheet fabricated by combination of extrusion and hot-rolling processes
文献类型：期刊论文
| 作者 | H. Yan ; R. S. Chen ; E. H. Han |
| 刊名 | Science in China Series E-Technological Sciences
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:1页码:166-171 |
| 关键词 | magnesium alloy quasicrystal microvoid superplasticity zn-y alloys quasi-crystalline particles elevated-temperatures magnesium alloy deformation mechanisms creep-behavior cavity growth hcp metals mg phase |
| ISSN号 | 1006-9321 |
| 中文摘要 | Superplastic behaviors of quasicrystal phase containing Mg-5.8Zn-1Y-0.48Zr alloy sheets fabricated by combination of extrusion and hot-rolling processes have been investigated at temperature ranging from 623 to 753 K and at the strain rates ranging from 10(-4) to 10(-2) s(-1) by uniaxial tensile tests. An excellent superplasticity with the maximum elongation to failure of 1020% was obtained at 753 K and the strain rate of 1.04 x 10(-3) s(-1) and its strain rate sensitivity, m, is as high as up to 0.75. The microstructure was stable during superplastic deformation due to the uniformly distributed fine quasicrystal particles. In addition, micro-cavities and their coalescences were observed in the superplastic deformation of the ZW61 magnesium alloy. Grain boundary sliding (GBS) was considered to be the main deformation mechanism during the superplastic deformation. Dislocation creep controlled by atom diffusion through grain boundaries or interior grains is suggested mainly to accommodate the GBS in superplastic deformation. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32470]  |
| 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 | H. Yan,R. S. Chen,E. H. Han. Superplasticity of Mg-5.8Zn-1Y-Zr alloy sheet fabricated by combination of extrusion and hot-rolling processes[J]. Science in China Series E-Technological Sciences,2009,52(1):166-171. |
| APA | H. Yan,R. S. Chen,&E. H. Han.(2009).Superplasticity of Mg-5.8Zn-1Y-Zr alloy sheet fabricated by combination of extrusion and hot-rolling processes.Science in China Series E-Technological Sciences,52(1),166-171. |
| MLA | H. Yan,et al."Superplasticity of Mg-5.8Zn-1Y-Zr alloy sheet fabricated by combination of extrusion and hot-rolling processes".Science in China Series E-Technological Sciences 52.1(2009):166-171. |
入库方式： OAI收割
来源：金属研究所
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