Atomic segregation at twin boundaries in a Mg-Ag alloy
文献类型：期刊论文
| 作者 | Chen XF(陈雪飞)3,4; Xiao LR2; Ding ZG2; Liu W2; Zhu YT1,2; Wu XL(武晓雷)3,4
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| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 178页码:193-197 |
| 关键词 | Segregation Twin boundary Magnesium alloy HAADF-STEM |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2019.11.025 |
| 通讯作者 | Ding, Z. G.(zhigangding@njust.edu.cn) ; Wu, X. L.(xlwu@imech.ac.cn) |
| 英文摘要 | Segregation of solute atoms at twin boundaries (TBs) plays a critical role in mechanical properties and thermal stability of magnesium alloys. Here, segregation structures at {10 (1) over bar1}, {10 (1) over bar2} and {10 (1) over bar3} TBs are characterized in a Mg-Ag alloy by means of the atomic resolution high-angle annular dark-field technique based on scanning transmission electron microscopy. Of particular finding is the unique complex segregation at {10 (1) over bar3} TBs, where Ag atoms occupy both substitutional and interstitial sites. By contrast, Ag atoms only substitutionally segregate at {10 (1) over bar1} and {10 (1) over bar2} TBs. Calculation simulation of segregation energy and three-dimensional structure of TBs helps understanding of hybrid segregation. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 分类号 | 一类 |
| WOS关键词 | INTERFACIAL SEGREGATION ; DEFORMATION ; MECHANISM ; PHASE |
| 资助项目 | National Key Research and Development Program of China[2017YFA0204402] ; National Natural Science Foundation of China[51601003] ; National Natural Science Foundation of China[11672323] ; National Natural Science Foundation of China[11572328] ; National Natural Science Foundation of China[51901103] ; National Natural Science Foundation of China[51601204] ; Fundamental Research Funds for the Central Universities[30918011342] ; U.S. Army Research Office[W911 NF-17-1-0350] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000510947200038 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; U.S. Army Research Office |
| 其他责任者 | Ding, Z. G. ; Wu, X. L. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/81541]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA 2.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing 210094, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Chen XF,Xiao LR,Ding ZG,et al. Atomic segregation at twin boundaries in a Mg-Ag alloy[J]. SCRIPTA MATERIALIA,2020,178:193-197. |
| APA | 陈雪飞,Xiao LR,Ding ZG,Liu W,Zhu YT,&武晓雷.(2020).Atomic segregation at twin boundaries in a Mg-Ag alloy.SCRIPTA MATERIALIA,178,193-197. |
| MLA | 陈雪飞,et al."Atomic segregation at twin boundaries in a Mg-Ag alloy".SCRIPTA MATERIALIA 178(2020):193-197. |
入库方式： OAI收割
来源：力学研究所
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