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Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms
Xie, Hongbo1; Pan, Hucheng1; Bai, Junyuan1; Xie, Dongsheng1; Yang, Peijun1; Li, Shanshan1; Jin, Jianfeng2; Huang, Qiuyan1,3; Ren, Yuping; Qin, Gaowu2
Corresponding AuthorPan, Hucheng(panhc@atm.neu.edu.cn)
2021-11-24
Source PublicationNANO LETTERS
ISSN1530-6984
Volume21Issue:22Pages:9642-9650
AbstractTwinning is a common deformation mechanism in metals, and twin boundary (TB) segregation of impurities/solutes plays an important role in the performances of alloys such as thermostability, mobility, and even strengthening. The occurrence of such segregation phenomena is generally believed as a one-layer coverage of solutes alternately distributed at extension/compression sites, in an orderly, continuous manner. However, in the Mnfree and Mn-containing Mg-Nd model systems, we reported unexpected three- and five-layered discontinuous segregation patterns of the coherent {10 (1) over bar1} TBs, and not all the extension sites occupied by solutes larger in size than Mg, and even some larger sized solutes taking the compression sites. Nd/Mn solutes selectively segregate at substitutional sites and thus to generate two new types of ordered two-dimensional TB superstructures or complexions. These findings refresh the understanding of solute segregation in the perfect coherent TBs and provide a meaningful theoretical guidance for designing materials via targeted TB segregation.
KeywordInterface Twin boundary Segregation Superstructure Dislocation Magnesium alloy
Funding OrganizationNational Natural Science Foundation of China ; Project of Promoting Talents in Liaoning Province ; Fundamental Research Funds for the Central Universities
DOI10.1021/acs.nanolett.1c03448
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[52101129] ; National Natural Science Foundation of China[51971053] ; National Natural Science Foundation of China[51701211] ; Project of Promoting Talents in Liaoning Province[XLYC1808038] ; Fundamental Research Funds for the Central Universities[N2002018]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000756421600036
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173481
Collection中国科学院金属研究所
Corresponding AuthorPan, Hucheng
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Xie, Hongbo,Pan, Hucheng,Bai, Junyuan,et al. Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms[J]. NANO LETTERS,2021,21(22):9642-9650.
APA Xie, Hongbo.,Pan, Hucheng.,Bai, Junyuan.,Xie, Dongsheng.,Yang, Peijun.,...&Qin, Gaowu.(2021).Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms.NANO LETTERS,21(22),9642-9650.
MLA Xie, Hongbo,et al."Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms".NANO LETTERS 21.22(2021):9642-9650.
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