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Effect of the Zener-Hollomon parameter on the microstructures and mechanical properties of Cu subjected to plastic deformation
文献类型：期刊论文
| 作者 | Y. S. Li ; Y. Zhang ; N. R. Tao ; K. Lu |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2009 |
| 卷号 | 57期号:3页码:761-772 |
| 关键词 | Copper Plastic deformation Nanostructures Zener Hollomon parameter Nanoscale deformation twinning stacking-fault energy grain-refinement large strains nanocrystalline materials rolling deformation copper evolution metals nickel attrition |
| ISSN号 | 1359-6454 |
| 中文摘要 | Pure Cu was deformed at different strain rates and temperatures, i.e. with different Zener Hollomon parameters (Z) ranging within InZ - 22 66, to investigate the effect or Z on its microstructures and mechanical properties. It was found that deformation twinning occurs when InZ exceeds 30, and the number of twins increases at higher Z. The average twin/matrix lamellar thickness is independent of Z, being around 50 nm. Deformation-induced grain refinement is enhanced at higher Z, and the mean transverse grain size drops from 320 to 66 nm when In Z increases from 22 to 66. The grain refinement is dominated by dislocation activities in low-Z processes, while deformation twinning plays a dominant role in high-Z deformation. An obvious increment in yield strength from 390 to 610 MPa was found in deformed Cu with increasing Z, owing to the significant grain refinement as well as the strengthening from nanoscale deformation twins. (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/321006/32051]  |
| 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 | Y. S. Li,Y. Zhang,N. R. Tao,et al. Effect of the Zener-Hollomon parameter on the microstructures and mechanical properties of Cu subjected to plastic deformation[J]. Acta Materialia,2009,57(3):761-772. |
| APA | Y. S. Li,Y. Zhang,N. R. Tao,&K. Lu.(2009).Effect of the Zener-Hollomon parameter on the microstructures and mechanical properties of Cu subjected to plastic deformation.Acta Materialia,57(3),761-772. |
| MLA | Y. S. Li,et al."Effect of the Zener-Hollomon parameter on the microstructures and mechanical properties of Cu subjected to plastic deformation".Acta Materialia 57.3(2009):761-772. |
入库方式： OAI收割
来源：金属研究所
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