Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys

doi:10.3390/met12101757

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	Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys
	Li, Chen 1,2; Cao, Fuhua 1,2; Chen, Yan 1,2; Wang, Haiying 1,2; Dai, Lanhong 1,2
刊名	METALS
	2022-10-01
卷号	12 期号:10 页码:13
关键词	short-range order medium and high entropy alloys crystal plasticity model
DOI	10.3390/met12101757
通讯作者	Dai, Lanhong(lhdai@lnm.imech.ac.cn)
英文摘要	Numerous studies have demonstrated the widespread presence of chemical short-range order (SRO) in medium and high entropy alloys (M/HEAs). However, the mechanism of their influence on macroscopic mechanical behavior remains to be understood. In this paper, we propose a novel dislocation-based model of crystal plasticity, by considering both the dislocation blocking and coplanar slip induced by SRO. The effect of SRO on the plastic deformation of CoCrNi MEAs was investigated. We found that the yield strength increases monotonically with increasing SRO-induced slip resistance, but the elongation first appeared to increase and then decreased. Further analysis suggested that the plastic elongation is a result of the competition between grain rotation-induced deformation coordination and stress concentration, which depends on the slip resistance of the SRO.
资助项目	National Science Foundation of China[51901235] ; National Science Foundation of China[51931005] ; National Science Foundation of China[11790292] ; National Science Foundation of China[11572324] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[U2141204] ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)[KFJJ18-14M]
WOS关键词	DUCTILITY MATCH ; MECHANISM ; BEHAVIOR
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000873159900001
资助机构	National Science Foundation of China ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90663]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Dai, Lanhong
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Li, Chen,Cao, Fuhua,Chen, Yan,et al. Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys[J]. METALS,2022,12(10):13.
APA	Li, Chen,Cao, Fuhua,Chen, Yan,Wang, Haiying,&Dai, Lanhong.(2022).Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys.METALS,12(10),13.
MLA	Li, Chen,et al."Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys".METALS 12.10(2022):13.