Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method
文献类型：期刊论文
| 作者 | Zheng, Ce1; Xu, Lijun1; Feng, Xiaohui1; Huang, Qiuyan1; Li, Yingju1; Zhang, Zhongwu2; Yang, Yuansheng1 |
| 刊名 | MATERIALS
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 15期号:19页码:18 |
| 关键词 | Cu-Al-Mn alloy crystal plasticity finite element method local stress grain boundary deformation mechanism |
| DOI | 10.3390/ma15196950 |
| 通讯作者 | Yang, Yuansheng(ysyang@imr.ac.cn) |
| 英文摘要 | Reducing the local stress in the vicinity of the grain boundaries is a favorable way to improve the super-elastic properties of super-elastic alloys. The crystal plasticity finite element method (CPFEM) was applied in this study to simulate the deformation behavior and local stress of a super-elastic Cu-8Al-11Mn (wt.%) alloy containing single grains with various orientations, columnar grains with different misorientation angles, and tri-crystals with distinct grain boundary morphologies. The results indicated that the stress distribution of single grains presented obvious orientation dependence during deformation. Uniformly distributed stress was observed in grains with orientations of 0 degrees and 90 degrees when more slip systems were activated during deformation. With the increase in the misorientation angles of columnar grains, the stresses in the vicinity of the grain boundaries increased, which was related to the difference in the shear stress of the slip systems in adjacent grains. When the difference in the shear stress of the slip systems in two adjacent grains was large, a local stress concentration formed in the vicinity of the grain boundary. Compared with the triple-junction grain boundaries, the local stresses of the straight and vertical grain boundaries were smaller, which was closely related to the number of activated slip systems on both sides of the grain boundary. The above results were obtained experimentally and could be used to design super-elastic alloys with high performance. |
| 资助项目 | National Key Research and Development Program of China[2018YFE0115800] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000866996600001 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176058]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Yuansheng |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Ce,Xu, Lijun,Feng, Xiaohui,et al. Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method[J]. MATERIALS,2022,15(19):18. |
| APA | Zheng, Ce.,Xu, Lijun.,Feng, Xiaohui.,Huang, Qiuyan.,Li, Yingju.,...&Yang, Yuansheng.(2022).Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method.MATERIALS,15(19),18. |
| MLA | Zheng, Ce,et al."Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method".MATERIALS 15.19(2022):18. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。