Unravelling the {10(1)over-bar2} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy

doi:10.11900/0412.1961.2022.00532

IMR OpenIR

	Unravelling the {10(1)over-bar2} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy
	Shao Xiaohong 1; Peng Zhenzhen 2; Jin Qianqian 3; Ma Xiuliang 1
通讯作者	Ma Xiuliang(xlma@imr.ac.cn)
	2023-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	59 期号:4 页码:556-566
摘要	The effect of long-period stacking ordered (LPSO) structure/solute-rich element laminar stacking faults (SFs) on the intersection of co-zone {10 (1) over bar2} twin variants was uncovered at the atomic scale by TEM. The results show that a basal-prismatic (BP) boundary is generally formed at the intersection of LPSO/SFs and twins, bending the twin boundaries (TBs) into a bow shape between the adjacent LPSO/SFs. The co-zone {10 (1) over bar2} twin variants and LPSO/SFs intersect with each other, introducing a basalbasal (BB) boundary and prismatic-prismatic (PP) boundaries, associated with a triangular matrix near the LPSO/SFs. More Zn atoms than Y atoms were segregated into the TBs. Also, when the LPSO structure is kinked, the {10 (1) over bar2} twin generates and grows on one side of the kink boundary, and the local kink boundary transforms into TB. The growing TB intersects with the residual kink boundary, leaving a triangular matrix near the LPSO/SFs. Multiple twin variants nucleate between the LPSO/SFs/TSFs (twinned stacking faults), and the associated Hall-Petch effect is brought by the segmentation introduced by the intersecting of variants, which can improve the Mg alloy hardening rate. Introducing different twin variants by regulating the LPSO structure's spacing and thickness in magnesium alloy may shed new light on optimizing their performance.
关键词	magnesium alloy LPSO structure twin Cs-corrected STEM atomic scale
资助者	National Natural Science Foundation of China
DOI	10.11900/0412.1961.2022.00532
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871222] ; National Natural Science Foundation of China[52171021]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000980757300012
出版者	SCIENCE PRESS
引用统计	被引频次：2[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/321006/177844
专题	中国科学院金属研究所
通讯作者	Ma Xiuliang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Shijiazhuang 050018, Hebei, Peoples R China 3.Guangxi Univ Sci & Technol, Sch Elect Engn, Ctr Struct Adv Matter, Liuzhou 545006, Peoples R China
推荐引用方式 GB/T 7714	Shao Xiaohong,Peng Zhenzhen,Jin Qianqian,et al. Unravelling the {10(1)over-bar2} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy[J]. ACTA METALLURGICA SINICA,2023,59(4):556-566.
APA	Shao Xiaohong,Peng Zhenzhen,Jin Qianqian,&Ma Xiuliang.(2023).Unravelling the {10(1)over-bar2} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy.ACTA METALLURGICA SINICA,59(4),556-566.
MLA	Shao Xiaohong,et al."Unravelling the {10(1)over-bar2} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy".ACTA METALLURGICA SINICA 59.4(2023):556-566.