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Microstructural evolution and enhanced superplasticity in friction stir processed Mg-Zn-Y-Zr alloy
文献类型：期刊论文
| 作者 | G. M. Xie ; Z. Y. Ma ; L. Geng ; R. S. Chen |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2008 |
| 卷号 | 23期号:5页码:1207-1213 |
| 关键词 | az91 magnesium alloy quasi-crystalline particles strain rate superplasticity mechanical-properties deformation behavior phase cast weld |
| ISSN号 | 0884-2914 |
| 中文摘要 | The extruded Mg-Zn-Y-Zr plate was subjected to friction stir processing (FSP). FSP resulted in significant breakup and dispersion of bulky W-phase particles and remarkable grain refinement, thereby substartially enhancing superplasticity. Maximum superplasticity of 635% was achieved at 450 degrees C and a relatively high strain rate of 3 x 10(-3) s(-1). By comparison, the as-extruded sample did not exhibit superplasticity. Grain boundary sliding was identified to be the primary deformation mechanism in the FSP Mg-Zn-Y-Zr by superplastic data analyses and surfacial morphology observations. Furthermore, the superplastic deformation kinetics of the FSP Mg-Zn-Y-Zr is significantly faster than that: of equal channel angular pressed (ECAP) magnesium alloys under both as-ECAP and annealing conditions. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33235]  |
| 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 | G. M. Xie,Z. Y. Ma,L. Geng,et al. Microstructural evolution and enhanced superplasticity in friction stir processed Mg-Zn-Y-Zr alloy[J]. Journal of Materials Research,2008,23(5):1207-1213. |
| APA | G. M. Xie,Z. Y. Ma,L. Geng,&R. S. Chen.(2008).Microstructural evolution and enhanced superplasticity in friction stir processed Mg-Zn-Y-Zr alloy.Journal of Materials Research,23(5),1207-1213. |
| MLA | G. M. Xie,et al."Microstructural evolution and enhanced superplasticity in friction stir processed Mg-Zn-Y-Zr alloy".Journal of Materials Research 23.5(2008):1207-1213. |
入库方式： OAI收割
来源：金属研究所
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