IMECH-IR  > 非线性力学国家重点实验室
Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys
Li C(李琛)1,2; Cao FH(曹富华)1,2; Chen Y(陈艳)1,2; Wang HY(汪海英)1,2; Dai LH(戴兰宏)1,2
Corresponding AuthorDai, Lanhong(lhdai@lnm.imech.ac.cn)
Source PublicationMETALS
2022-10-01
Volume12Issue:10Pages:13
AbstractNumerous 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.
Keywordshort-range order medium and high entropy alloys crystal plasticity model
DOI10.3390/met12101757
Indexed BySCI
Language英语
WOS IDWOS:000873159900001
WOS KeywordDUCTILITY MATCH ; MECHANISM ; BEHAVIOR
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding ProjectNational 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]
Funding OrganizationNational 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)
Classification二类
Ranking1
ContributorDai, Lanhong
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/90664
Collection非线性力学国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Li C,Cao FH,Chen Y,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 李琛,曹富华,陈艳,汪海英,&戴兰宏.(2022).Crystal Plasticity Model Analysis of the Effect of Short-Range Order on Strength-Plasticity of Medium Entropy Alloys.METALS,12(10),13.
MLA 李琛,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.
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