Stacking Faults and Growth Twins in Long-Period Stacking-Ordered Structures in Mg-Co-Y Alloys

doi:10.1002/adem.201901029

IMR OpenIR

	Stacking Faults and Growth Twins in Long-Period Stacking-Ordered Structures in Mg-Co-Y Alloys
	Jin, Qianqian 1; Shao, Xiaohong 1; Peng, Zhenzhen 2; Zhou, Yangtao 1; Zhang, Bo 1; Zheng, Shijian 3; Ma, Xiuliang 1
通讯作者	Shao, Xiaohong(xhshao@imr.ac.cn)
	2019-12-12
发表期刊	ADVANCED ENGINEERING MATERIALS
ISSN	1438-1656
卷号	22 期号:4 页码:7
摘要	Herein, 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.
关键词	high-angle annular dark-field scanning transmission electron microscopy long-period stacking-ordered structure magnesium alloys stacking faults
资助者	National Natural Science Foundation of China
DOI	10.1002/adem.201901029
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51801214] ; National Natural Science Foundation of China[51871222]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000502169400001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136097
专题	中国科学院金属研究所
通讯作者	Shao, Xiaohong
作者单位	1.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
推荐引用方式 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.