IMECH-IR  > 非线性力学国家重点实验室
Extraordinary creep relaxation time in a La-based metallic glass
Zhang M(张猛); Chen Y(陈艳); Wei D; Dai LH(戴兰宏)
Source PublicationJOURNAL OF MATERIALS SCIENCE
2018-02-01
Volume53Issue:4Pages:2956-2964
ISSN0022-2461
AbstractThe structural relaxation times of metallic glasses (MGs) are generally believed to decrease with increasing flow rate, also known as shear thinning. In this work, an extraordinary loading rate-independent creep relaxation time, in contrast to the decreasing Maxwell relaxation time with increasing loading rate, is observed for a La-based MG with pronounced Johari-Goldstein relaxation under nanoindentation. The Johari-Goldstein relaxation in the flow of MGs is suggested to be a form of local Newtonian flow and may be not crucial in shear thinning, whereas the main alpha relaxation is proposed to predominate in the shear thinning of MGs, based on the disparity between the creep relaxation time and the Maxwell relaxation time. These results improve the current understandings on the structural relaxation and its role in the shear thinning and plastic deformation of MGs.
DOI10.1007/s10853-017-1725-y
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000416544500054
WOS KeywordJOHARI-GOLDSTEIN RELAXATION ; SHEAR TRANSFORMATION ZONE ; NANOINDENTATION CREEP ; INDENTATION CREEP ; ROOM-TEMPERATURE ; BEHAVIOR ; DEFORMATION ; FLOW ; TRANSITION ; LIQUID
WOS Research AreaMaterials Science, Multidisciplinary
WOS SubjectMaterials Science
Funding OrganizationNational Nature and Science Foundation of China [11472287, 11572324] ; Key Research Program of Frontier Sciences [QYZDJSSW-JSC011] ; Chinese Academy of Sciences [XDB22040302, XDB22040303] ; State Key Laboratory of Nonlinear Mechanics [LNM201718]
Classification二类
Ranking1
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77881
Collection非线性力学国家重点实验室
Affiliation1.[Zhang, M.] Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China
2.[Zhang, M.
3.Chen, Y.
4.Wei, D.
5.Dai, L. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
6.[Chen, Y.
7.Wei, D.
8.Dai, L. H.] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang M,Chen Y,Wei D,et al. Extraordinary creep relaxation time in a La-based metallic glass[J]. JOURNAL OF MATERIALS SCIENCE,2018,53(4):2956-2964.
APA 张猛,陈艳,Wei D,&戴兰宏.(2018).Extraordinary creep relaxation time in a La-based metallic glass.JOURNAL OF MATERIALS SCIENCE,53(4),2956-2964.
MLA 张猛,et al."Extraordinary creep relaxation time in a La-based metallic glass".JOURNAL OF MATERIALS SCIENCE 53.4(2018):2956-2964.
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