Role of strain gradient on grain refinement by severe plastic deformation
文献类型：期刊论文
| 作者 | Y. Todaka ; M. Umemoto ; J. Yin ; Z. G. Liu ; K. Tsuchiya |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2007 |
| 卷号 | 462期号:1-2页码:264-268 |
| 关键词 | strain gradient nanocrystalline structure severe plastic deformation ball milling high-pressure torsion nanocrystalline ferrite behavior |
| ISSN号 | 0921-5093 |
| 中文摘要 | The role of strain gradient on strengthening and grain refinement into nanometer scale during severe plastic deformation was studied in iron by using ball milling (BM) and high-pressure torsion (HPT) processes. Layered nanocrystalline structure with a thickness of around 100 nm or less was successfully produced by these processes. The hardness obtained by BM or HPT was more than twice as high as the maximum hardness obtained by homogeneous deformation processes such as equal-channel angular pressing, accumulative roll-bonding or cold-rolling. At the center of the HPT-processed disk, where the shear strain is theoretically zero, the hardness increased with number of turns. The results of BM and HPT experiments show clearly that the strain gradient contributes significantly to strengthening and grain refinement. (C) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33839]  |
| 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. Todaka,M. Umemoto,J. Yin,et al. Role of strain gradient on grain refinement by severe plastic deformation[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,462(1-2):264-268. |
| APA | Y. Todaka,M. Umemoto,J. Yin,Z. G. Liu,&K. Tsuchiya.(2007).Role of strain gradient on grain refinement by severe plastic deformation.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,462(1-2),264-268. |
| MLA | Y. Todaka,et al."Role of strain gradient on grain refinement by severe plastic deformation".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 462.1-2(2007):264-268. |
入库方式： OAI收割
来源：金属研究所
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