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Dislocation facilitated formation and evolution of basal-prismatic/prismatic-basal interfaces in a Mg alloy
Su, Huhu1,2; Zhou, Xinzhe2; Zheng, Shijian1; Ye, Hengqiang3; Yang, Zhiqing2,3
Corresponding AuthorZheng, Shijian(sjzheng@hebut.edu.cn) ; Yang, Zhiqing(yangzq@imr.ac.cn)
2022
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume206Pages:7
AbstractFormation and evolution of basal-prismatic/prismatic-basal (BP/PB) interfaces in a Mg alloy subjected to cyclic deformation were studied and modeled, according to atomic-resolution experimental observations and theory of interfacial defects. It is found that BP/PB interfaces could be formed by emission of 60 degrees basal 1/3 < 11 (2) over bar0 > dislocations (referred to as < a(60)>), < c + a (60)> and {10 (1) over bar2} twinning disconnections (TDs) from asymmetric tilt grain boundaries near the {10 (1) over bar2} twin orientation. Transformation of BP/PB interfaces into {10 (1) over bar2} twin boundaries could occur by emission of < a(60)> and < c + a(60)> dislocations, resulting in nucleation of {10 (1) over bar2} twins. Moreover, each side of BP/PB facets could emit {10 (1) over bar2} TDs to facilitate migration of BP/PB interfaces. Our experimental results may provide insights into the dislocation-assisted mechanisms of formation and evolution of BP/PB interfaces in hexagonal-close-packed materials. (C) 2021 Published by Elsevier Ltd on behalf of Acta Materialia Inc.
KeywordMg alloys Dislocations Twinning Grain boundary Migration
Funding OrganizationNational Natural Science Foun-dation of China ; National Youth Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Project of Nat-ural Science Foundation of Tianjin ; State Key Laboratory of Rolling and Automa-tion, Northeastern University ; China Postdoctoral Science Foundation ; Ji Hua Laboratory
DOI10.1016/j.scriptamat.2021.114237
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foun-dation of China[51971225] ; National Natural Science Foun-dation of China[51771202] ; National Natural Science Foun-dation of China[51771201] ; National Youth Science Foundation of China[52101011] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC027] ; Key Project of Nat-ural Science Foundation of Tianjin[20JCZDJC00440] ; State Key Laboratory of Rolling and Automa-tion, Northeastern University[2020RALKFKT002] ; China Postdoctoral Science Foundation[2021M690859] ; Ji Hua Laboratory[X210141TL210]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000704383000009
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166802
Collection中国科学院金属研究所
Corresponding AuthorZheng, Shijian; Yang, Zhiqing
Affiliation1.Hebei Univ Technol, Tianjin Key Lab Mat Laminating Fabricat & Interfa, Sch Mat Sci & Engn, Tianjin 300401, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Ji Hua Lab, Foshan 528200, Peoples R China
Recommended Citation
GB/T 7714
Su, Huhu,Zhou, Xinzhe,Zheng, Shijian,et al. Dislocation facilitated formation and evolution of basal-prismatic/prismatic-basal interfaces in a Mg alloy[J]. SCRIPTA MATERIALIA,2022,206:7.
APA Su, Huhu,Zhou, Xinzhe,Zheng, Shijian,Ye, Hengqiang,&Yang, Zhiqing.(2022).Dislocation facilitated formation and evolution of basal-prismatic/prismatic-basal interfaces in a Mg alloy.SCRIPTA MATERIALIA,206,7.
MLA Su, Huhu,et al."Dislocation facilitated formation and evolution of basal-prismatic/prismatic-basal interfaces in a Mg alloy".SCRIPTA MATERIALIA 206(2022):7.
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