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

doi:10.1016/j.matchar.2020.110395

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	MATERIALS CHARACTERIZATION
	2020-07-01
卷号	165 页码:7
关键词	Magnesium alloys Long-period stacking ordered (LPSO) structure HAADF-STEM Stacking fault (SF) Growth twins Shockley partial dislocations
ISSN号	1044-5803
DOI	10.1016/j.matchar.2020.110395
通讯作者	Shao, X. H.(xhshao@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000541742100032
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139565]
专题	金属研究所_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.