An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation
文献类型：期刊论文
| 作者 | Zhang YW(张永伟); Wang ZQ(王自强)
|
| 刊名 | Acta Mechanica Solida Sinica
 |
| 出版日期 | 1995 |
| 卷号 | 8期号:2页码:95-109 |
| 关键词 | Simple Polycrystal Grain Boundary Bicrystal Interfaces Crystals Molybdenum Bimaterial Fracture |
| ISSN号 | 0894-9166 |
| 中文摘要 | A numerical investigation on the simple polycrystals containing three symmetrical tilt grain boundaries (GBs) is carried out within the framework of crystal plasticity which precisely considers the finite deformation and finite lattice rotation as well as elastic anisotropy. The calculated results show that the slip geometry and the redistribution of stresses arising from the anisotropy and boundary constraint play an important role in the plastic deformation in the simple polycrystals. The stress level along GB is sensitive to the load level and misorientation, and the stresses along QB are distributed nonuniformly. The GB may exhibit a softening or strengthening feature, which depends on the misorientation angle. The localized deformation bands usually develop accompanying the GB plastic deformation, the impingement of the localized band on the GB may result in another localized deformation band. The yield stresses with different misorientation angles are favorably compared with the experimental results. |
| 类目[WOS] | Materials Science, Multidisciplinary ; Mechanics |
| 研究领域[WOS] | Materials Science ; Mechanics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1995RR43500001 |
| 公开日期 | 2009-08-03 ; 2010-08-20 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/39202]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Zhang YW,Wang ZQ. An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation[J]. Acta Mechanica Solida Sinica,1995,8(2):95-109. |
| APA | 张永伟,&王自强.(1995).An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation.Acta Mechanica Solida Sinica,8(2),95-109. |
| MLA | 张永伟,et al."An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation".Acta Mechanica Solida Sinica 8.2(1995):95-109. |
入库方式： OAI收割
来源：力学研究所
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