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Probing the role of Johari-Goldstein relaxation in the plasticity of metallic glasses
Zhang M(张猛); Chen Y(陈艳); He RG; Guo SF; Ma J; Dai LH(戴兰宏)
Corresponding AuthorZhang, M.(m.zhangiwrm@jnu.edu.cn) ; Chen, Y.(chenyan@lnm.imech.ac.cn) ; Dai, L. H.(lhdai@lnm.imech.ac.cn)
Source PublicationMATERIALS RESEARCH LETTERS
2019
Volume7Issue:9Pages:383-391
ISSN2166-3831
AbstractJohari-Goldstein (JG) relaxation closely relates to the shear transformation zones (STZs) in the flow of metallic glasses (MGs). However, the actual role played by JG relaxation in the STZ-evoked plastic deformation of MGs remains unknown. In this work, by substituting the transition metal (TM) element in La(TM)Al MGs (TM = Ni, Co, Cu, CuNi) to tune the feature of JG relaxation, how JG relaxation alters the deformation behaviors of MGs is tentatively examined with nanoindentation. The results demonstrate that JG relaxation modulates the anelastic to plastic transition rate in the plastic deformation accommodation of MGs via a characteristic relaxation time. [GRAPHICS]
KeywordMetallic glasses Johari-Goldstein relaxation plasticity nanoindentation
DOI10.1080/21663831.2019.1620360
Indexed BySCI
Language英语
WOS IDWOS:000471551600006
WOS KeywordRATE DEPENDENCE ; SERRATED FLOW ; TRANSITION
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding ProjectNationalNature and Science Foundation of China[51701082] ; Fundamental Research Funds for the Central Universities ; Guangdong Province Science and Technology Plan[2017B090903005] ; Opening Fund of State Key Laboratory of Non-linear Mechanics[LNM201812]
Funding OrganizationNationalNature and Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Guangdong Province Science and Technology Plan ; Opening Fund of State Key Laboratory of Non-linear Mechanics
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79398
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Zhang M,Chen Y,He RG,et al. Probing the role of Johari-Goldstein relaxation in the plasticity of metallic glasses[J]. MATERIALS RESEARCH LETTERS,2019,7(9):383-391.
APA 张猛,陈艳,He RG,Guo SF,Ma J,&戴兰宏.(2019).Probing the role of Johari-Goldstein relaxation in the plasticity of metallic glasses.MATERIALS RESEARCH LETTERS,7(9),383-391.
MLA 张猛,et al."Probing the role of Johari-Goldstein relaxation in the plasticity of metallic glasses".MATERIALS RESEARCH LETTERS 7.9(2019):383-391.
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