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Stacking Faults and Growth Twins in Long-Period Stacking-Ordered Structures in Mg-Co-Y Alloys
Jin, Qianqian1; Shao, Xiaohong1; Peng, Zhenzhen2; Zhou, Yangtao1; Zhang, Bo1; Zheng, Shijian3; Ma, Xiuliang1
Corresponding AuthorShao, Xiaohong(xhshao@imr.ac.cn)
2019-12-12
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Volume22Issue:4Pages:7
AbstractHerein, by atomic-scale high-angle annular dark field scanning transmission electron microscopy, the structure, symmetry, and distribution of stacking faults (SFs) and growth twins in 12H, 15R, and 18R long-period stacking-ordered (LPSO) structures in Mg88Co5Y7 and Mg92Co2Y6 (at%) as-cast alloys are characterized. The SFs or growth twins in LPSO structures are denoted as the faulted arrangement of n-Mg components, and some of them possess inversion centers or mirror symmetry. The formation of SFs or growth twins in 15R and 18R structures depends on whether the sum of Mg layers in all the n-Mg components of the defect is an even number or an odd number, whereas only SFs form in 12H structures. Various types of SFs or SFs of the same kind can distribute locally in the LPSO structures in Mg-Co-Y alloys, and then some other LPSO structures with a longer period are detected via orderly distribution of SFs.
Keywordhigh-angle annular dark-field scanning transmission electron microscopy long-period stacking-ordered structure magnesium alloys stacking faults
Funding OrganizationNational Natural Science Foundation of China
DOI10.1002/adem.201901029
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51801214] ; National Natural Science Foundation of China[51871222]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000502169400001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136097
Collection中国科学院金属研究所
Corresponding AuthorShao, Xiaohong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Shijiazhuang 050018, Hebei, Peoples R China
3.Hebei Univ Technol, Sch Mat Sci & Engn, Res Inst Energy Equipment Mat, Tianjin 300130, Peoples R China
Recommended Citation
GB/T 7714
Jin, Qianqian,Shao, Xiaohong,Peng, Zhenzhen,et al. Stacking Faults and Growth Twins in Long-Period Stacking-Ordered Structures in Mg-Co-Y Alloys[J]. ADVANCED ENGINEERING MATERIALS,2019,22(4):7.
APA Jin, Qianqian.,Shao, Xiaohong.,Peng, Zhenzhen.,Zhou, Yangtao.,Zhang, Bo.,...&Ma, Xiuliang.(2019).Stacking Faults and Growth Twins in Long-Period Stacking-Ordered Structures in Mg-Co-Y Alloys.ADVANCED ENGINEERING MATERIALS,22(4),7.
MLA Jin, Qianqian,et al."Stacking Faults and Growth Twins in Long-Period Stacking-Ordered Structures in Mg-Co-Y Alloys".ADVANCED ENGINEERING MATERIALS 22.4(2019):7.
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