Contribution of grain boundary sliding in low-temperature superplasticity of ultrafine-grained aluminum alloys
文献类型：期刊论文
| 作者 | F. C. Liu ; Z. Y. Ma |
| 刊名 | Scripta Materialia
 |
| 出版日期 | 2010 |
| 卷号 | 62期号:3页码:125-128 |
| 关键词 | Superplasticity Friction stir processing Ultrafine-grained structure Aluminum alloys Friction stir welding strain-rate superplasticity severe plastic-deformation mg-sc alloy inter-crystalline zr alloy behavior refinement evolution |
| ISSN号 | 1359-6462 |
| 中文摘要 | Ultrafine-grained (0.6 mu m) Al-Mg-Sc alloy with predominant high-angle boundaries was produced by friction stir processing. A superplastic elongation of 210% was obtained at 175 degrees C, and the optimum strain rate and maximum elongation increased with increasing temperature. Marker lines were scratched on the polished specimen surfaces using a nano-indenter to measure grain boundary sliding (GBS) offsets during deformation, which indicated that the GBS contribution to the strain exceeded 50% at 175 degrees C and increased with increases in strain and temperature. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31278]  |
| 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 | F. C. Liu,Z. Y. Ma. Contribution of grain boundary sliding in low-temperature superplasticity of ultrafine-grained aluminum alloys[J]. Scripta Materialia,2010,62(3):125-128. |
| APA | F. C. Liu,&Z. Y. Ma.(2010).Contribution of grain boundary sliding in low-temperature superplasticity of ultrafine-grained aluminum alloys.Scripta Materialia,62(3),125-128. |
| MLA | F. C. Liu,et al."Contribution of grain boundary sliding in low-temperature superplasticity of ultrafine-grained aluminum alloys".Scripta Materialia 62.3(2010):125-128. |
入库方式： OAI收割
来源：金属研究所
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