Effects of pressure on the generalized stacking fault energy and twinning propensity of face-centered cubic metals

doi:10.1016/j.jallcom.2021.158869

IMR OpenIR

	Effects of pressure on the generalized stacking fault energy and twinning propensity of face-centered cubic metals
	Yan, J. X.1,2; Zhang, Z. J.1; Yu, H.1,3,4; Li, K. Q.1,2; Hu, Q. M.1,2; Yang, J. B.1,2; Zhang, Z. F.1,2
通讯作者	Hu, Q. M.(qmhu@imr.ac.cn) ; Yang, J. B.(jbyang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2021-06-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	866 页码:12
摘要	The effects of pressure on the generalized stacking fault energies (GSFE), core structure of dissociated dislocation, twinning propensity and phase stability are comprehensively investigated by molecular statics simulations and first principles calculations in three typical face-centered cubic (FCC) metals, Cu, Ag and the equiatomic CoCrFeMnNi high-entropy alloy (HEA). It demonstrates that the pressure has an important impact on the morphology of GSFEs in Cu, Ag and the CoCrFeMnNi HEA. In contrast to the slight improvement of twinning propensity in Cu, a substantial enhancement of twinning propensity is caused by high pressures in Ag and the CoCrFeMnNi HEA. The first principles calculation indicates that the dependence of stacking fault energy and the relative stability of FCC and HCP phases on the pressure dictates the sensitivity of twinning propensity to the pressure in FCC metals. The results not only shed new light on the pressure effects on the twinning propensity, but also have an important implication on the manipulation of deformation mechanisms and mechanical properties in FCC metals. (C) 2021 Elsevier B.V. All rights reserved.
关键词	Molecular dynamics simulations First-principles calculations High-pressure High entropy alloy Twinning Phase transitions
资助者	National Natural Science Foundation of China (NSFC) ; LiaoNing Revitalization Talents Program
DOI	10.1016/j.jallcom.2021.158869
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[51571198] ; National Natural Science Foundation of China (NSFC)[51771206] ; National Natural Science Foundation of China (NSFC)[52071316] ; LiaoNing Revitalization Talents Program[XLYC1808027]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000630241800027
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：26[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/321006/161494
专题	中国科学院金属研究所
通讯作者	Hu, Q. M.; Yang, J. B.; Zhang, Z. F.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 4.Shenyang Univ Technol, Sch Informat Sci & Engn, Shenyang 111003, Peoples R China
推荐引用方式 GB/T 7714	Yan, J. X.,Zhang, Z. J.,Yu, H.,et al. Effects of pressure on the generalized stacking fault energy and twinning propensity of face-centered cubic metals[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,866:12.
APA	Yan, J. X..,Zhang, Z. J..,Yu, H..,Li, K. Q..,Hu, Q. M..,...&Zhang, Z. F..(2021).Effects of pressure on the generalized stacking fault energy and twinning propensity of face-centered cubic metals.JOURNAL OF ALLOYS AND COMPOUNDS,866,12.
MLA	Yan, J. X.,et al."Effects of pressure on the generalized stacking fault energy and twinning propensity of face-centered cubic metals".JOURNAL OF ALLOYS AND COMPOUNDS 866(2021):12.