| Nonsymmetrical Segregation of Solutes in Periodic Misfit Dislocations Separated Tilt Grain Boundaries | |
| Xie, Hongbo1; Huang, Qiuyan2; Bai, Junyuan1; Li, Shanshan1; Liu, Yang2; Feng, Jianguang2; Yang, Yuansheng2; Pan, Hucheng1; Li, Hongxiao3; Ren, Yuping3,4; Qin, Gaowu3,4 | |
| Corresponding Author | Huang, Qiuyan(qyhuang16b@imr.ac.cn) ; Pan, Hucheng(panhc@atm.neu.edu.cn) |
| 2021-04-14 | |
| Source Publication | NANO LETTERS
 |
| ISSN | 1530-6984 |
| Volume | 21Issue:7Pages:2870-2875 |
| Abstract | Interfacial segregation is ubiquitous in mulit-component polycrystalline materials and plays a decisive role in material properties. So far, the discovered solute segregation patterns at special high-symmetry interfaces are usually located at the boundary lines or are distributed symmetrically at the boundaries. Here, in a model Mg-Nd-Mn alloy, we confirm that elastic strain minimization facilitated nonsymmetrical segregation of solutes in four types of linear tilt grain boundaries (TGBs) to generate ordered interfacial superstructures. Aberration-corrected high-angle annular dark-field scanning transmission electron microscopy observations indicate that the solutes selectively segregate at substitutional sites at the linear TGBs separated by periodic misfit dislocations to form such two-dimensional planar structures. These findings are totally different from the classical McLean-type segregation which has assumed the monolayer or submonolayer coverage of a grain boundary and refresh understanding on strain-driven interface segregation behaviors. |
| Keyword | Interface segregation Misfit dislocation Tilt grain boundary Superstructure Magnesium alloy |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Project of Promoting Talents in Liaoning Province ; China Postdoctoral Science Foundation |
| DOI | 10.1021/acs.nanolett.0c05008 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2016YFB0701202] ; National Key Research and Development Program of China[2016YFB0301105] ; National Key Research and Development Program of China[2016YFB0701200] ; National Natural Science Foundation of China[51525101] ; National Natural Science Foundation of China[51971053] ; National Natural Science Foundation of China[U1610253] ; National Natural Science Foundation of China[51701211] ; Project of Promoting Talents in Liaoning Province[XLYC1808038] ; China Postdoctoral Science Foundation[2020M670774] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000641160500023 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161806 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Huang, Qiuyan; Pan, Hucheng |
| Affiliation | 1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 4.Northeastern Univ, Res Ctr Met Wires, Shenyang 110819, Peoples R China |
| Recommended Citation GB/T 7714 | Xie, Hongbo,Huang, Qiuyan,Bai, Junyuan,et al. Nonsymmetrical Segregation of Solutes in Periodic Misfit Dislocations Separated Tilt Grain Boundaries[J]. NANO LETTERS,2021,21(7):2870-2875. |
| APA | Xie, Hongbo.,Huang, Qiuyan.,Bai, Junyuan.,Li, Shanshan.,Liu, Yang.,...&Qin, Gaowu.(2021).Nonsymmetrical Segregation of Solutes in Periodic Misfit Dislocations Separated Tilt Grain Boundaries.NANO LETTERS,21(7),2870-2875. |
| MLA | Xie, Hongbo,et al."Nonsymmetrical Segregation of Solutes in Periodic Misfit Dislocations Separated Tilt Grain Boundaries".NANO LETTERS 21.7(2021):2870-2875. |
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