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Local-structure-affected behavior during self-driven grain boundary migration
Luo, X. M.; Zhang, B.; Zhu, X. F.; Zhou, Y. T.; Xiao, T. Y.; Zhang, G. P.; Zhang, GP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-06-01
Source PublicationMRS COMMUNICATIONS
ISSN2159-6859
Volume6Issue:2Pages:85-91
AbstractIn nanocrystalline (nc) metals, it is still not clear how local grain boundary (GB) structures accommodate GB migration at atomic scales and what dominates the motion of atoms at the inherently unstable GB front. Here, we report the adjustment of the local GB structures at atomic scales during self-driven GB migration, simultaneously involving GB dissociation, partial dislocation emission from GB, and faceting/defaceting in the nc Cu. Furthermore, we reveal that the fundamental of GB migration ability is closely related to the local structure, i.e. the GB segment consisting of hybrid structural units and delocalized GB dislocations is relatively unstable.
description.departmentshenyang natl lab mat sci, chinese acad sci, inst met res, shenyang 110016, peoples r china ; ne univ, sch mat sci & engn, key lab anisotropy & texture mat, minist educ, shenyang 110819, peoples r china ; [luo, x. m. ; zhu, x. f. ; zhou, y. t. ; zhang, g. p.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [zhang, b. ; xiao, t. y.] northeastern univ, sch mat sci & engn, minist educ, key lab anisotropy & texture mat, 3-11 wenhua rd, shenyang 110819, peoples r china
Subject AreaMaterials Science
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51371047, 51571199]; External Cooperation Program of the Chinese Academy of Sciences [GJHZ1401]; NSFC [51371180]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75842
Collection中国科学院金属研究所
Corresponding AuthorZhang, GP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Luo, X. M.,Zhang, B.,Zhu, X. F.,et al. Local-structure-affected behavior during self-driven grain boundary migration[J]. MRS COMMUNICATIONS,2016,6(2):85-91.
APA Luo, X. M..,Zhang, B..,Zhu, X. F..,Zhou, Y. T..,Xiao, T. Y..,...&Zhang, GP .(2016).Local-structure-affected behavior during self-driven grain boundary migration.MRS COMMUNICATIONS,6(2),85-91.
MLA Luo, X. M.,et al."Local-structure-affected behavior during self-driven grain boundary migration".MRS COMMUNICATIONS 6.2(2016):85-91.
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