Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy

doi:10.1016/j.matchar.2020.110395

IMR OpenIR

	Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy
	Jin, Q. Q.1; Shao, X. H.1; Yang, L. X.1; Zhou, Y. T.1; Zhang, B.1; Zheng, S. J.2; Ma, X. L.1
通讯作者	Shao, X. H.(xhshao@imr.ac.cn)
	2020-07-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	165 页码:7
摘要	We investigated the structure, symmetry, and distribution of stacking faults and growth twins in 18R and 14H long-period stacking ordered (LPSO) structures in a near-equilibrium Mg97Zn1Y2 (at.%) alloy by transmission electron microscopy. The stacking faults and growth twins here result from the insertion of the n-Mg components in the LPSO structure, and some of them possess inversion centers or mirror symmetry. The stacking faults and growth twins in 18R LPSO depend on whether the sum of inserted Mg layers of all n-Mg components in defects is even number or odd number, respectively, while only stacking faults appear in 14H LPSO. The gliding of Shockley partial dislocation pairs induces the transformation of stacking faults and motion of twin boundary. Statistically, the periodical arrangement of stacking faults in 18R or 14H LPSO structures results in the formation of superstructures, such as 62L, 86L, 152L, and 235L.
关键词	Magnesium alloys Long-period stacking ordered (LPSO) structure HAADF-STEM Stacking fault (SF) Growth twins Shockley partial dislocations
资助者	National Natural Science Foundation of China
DOI	10.1016/j.matchar.2020.110395
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 ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000541742100032
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：4[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/321006/139566
专题	中国科学院金属研究所
通讯作者	Shao, X. H.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.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, Q. Q.,Shao, X. H.,Yang, L. X.,et al. Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy[J]. MATERIALS CHARACTERIZATION,2020,165:7.
APA	Jin, Q. Q..,Shao, X. H..,Yang, L. X..,Zhou, Y. T..,Zhang, B..,...&Ma, X. L..(2020).Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy.MATERIALS CHARACTERIZATION,165,7.
MLA	Jin, Q. Q.,et al."Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy".MATERIALS CHARACTERIZATION 165(2020):7.