Investigation on micro-hardness with shear strain extent for copper specimens subjected to high pressure torsion
文献类型：会议论文
| 作者 | Liu Y; Hong YS(洪友士) ; Fan KK; Ji XD
|
| 出版日期 | 2009 |
| 会议名称 | International Conference on Experimental Mechanics 2008, ICEM 2008 |
| 会议日期 | November 8, 2008 - November 8, 2008 |
| 会议地点 | Nanjing, China |
| 关键词 | Crystal particles Grain size Grain size refinement High pressure torsions Mechanical performance Metal materials Radius direction Saturation state Spatial distribution |
| 通讯作者 | Liu, Y. (yuanliu2009@gmail.com) |
| 中文摘要 | High Pressure Torsion (HPT) is an effective way to diminish the size of the crystal particles and improve the mechanical performance of metal material. In this study, the micro-hardness, size of crystal particles and shear strain of copper samples treated with HPT and their relationship were investigated. The results showed that the micro-hardness of the HPT copper increases from 50 to 140 when the nominal shear strain increases from 0 to 5. Then it reached saturation state and the micro-hardness didn't increase obviously when the shear strain increased further. The grain size becomes smaller as the distance away from the centre of sample for the sample with fewer turns of torsion. For the sample with more turns of torsion, in addition to the grain size refinement, the micro-hardness reaches saturation and its spatial distribution is uniform both along thickness and radius direction. © 2009 SPIE. |
| 收录类别 | EI |
| 会议网址 | 10.1117/12.839236 |
| 会议录 | Proceedings of SPIE - The International Society for Optical Engineering
 |
| 语种 | 英语 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60462]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 推荐引用方式 GB/T 7714 | Liu Y,Hong YS,Fan KK,et al. Investigation on micro-hardness with shear strain extent for copper specimens subjected to high pressure torsion[C]. 见:International Conference on Experimental Mechanics 2008, ICEM 2008. Nanjing, China. November 8, 2008 - November 8, 2008.10.1117/12.839236. |
入库方式： OAI收割
来源：力学研究所
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