The study on microscopic mechanical property of polycrystalline with SEM moire method
文献类型：期刊论文
| 作者 | Li, YJ ; Xie, HM ; Tang, MJ ; Zhu, JG ; Luo, Q ; Gu, CZ |
| 刊名 | OPTICS AND LASERS IN ENGINEERING
 |
| 出版日期 | 2012 |
| 卷号 | 50期号:12页码:1757 |
| 关键词 | PHASE-SHIFTED INTERFEROGRAMS ADVANCED ITERATIVE ALGORITHM ELECTRON-BEAM LITHOGRAPHY MICROCREEP DEFORMATION FABRICATION TECHNOLOGY |
| ISSN号 | 0143-8166 |
| 通讯作者 | Xie, HM (reprint author), Tsinghua Univ, Dept Engn Mech, AML, Beijing 100084, Peoples R China. |
| 中文摘要 | The local microscopic deformation of polycrystalline low carbon steel under uniaxial tension is measured through SEM moire method. In order to produce high frequency gratings, focused ion beam (FIB) milling is used due to its direct writing capability. With gratings of 2000 lines/mm, the variations of SEM moire fringes with the increase of stress around a triple point of grain boundary and inside a grain are observed respectively and it is found that we can tell whether the specimen has yielded by moire fringes. With gratings of 5000 lines/mm, SEM moire fringes around five different types of grain boundaries are recorded and analyzed with random phase shifting algorithm. By observing the strain fields around different types of grain boundaries, it is found that the deformation fields around these grain boundaries are inhomogeneous and increase with stress. However, the strain distributions are different, which is probably related with the angle between the loading direction and the grain boundary and the misorientation of two adjacent grains. It is also found that the inhomogeneous strain is caused by slip and the bending direction of moire fringes is in agreement with the direction of slip band. (C) 2012 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China ("973" Project) [2010CB631005, 2011CB606105]; National Natural Science Foundation of China [90916010, 11172151]; Specialized Research Fund for the Doctoral Program of Higher Education [20090002110048] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45542]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, YJ,Xie, HM,Tang, MJ,et al. The study on microscopic mechanical property of polycrystalline with SEM moire method[J]. OPTICS AND LASERS IN ENGINEERING,2012,50(12):1757. |
| APA | Li, YJ,Xie, HM,Tang, MJ,Zhu, JG,Luo, Q,&Gu, CZ.(2012).The study on microscopic mechanical property of polycrystalline with SEM moire method.OPTICS AND LASERS IN ENGINEERING,50(12),1757. |
| MLA | Li, YJ,et al."The study on microscopic mechanical property of polycrystalline with SEM moire method".OPTICS AND LASERS IN ENGINEERING 50.12(2012):1757. |
入库方式： OAI收割
来源：物理研究所
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