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Understanding the serrated flow and Johari-Goldstein relaxation of metallic glasses
Zhang M(张猛); Wang YJ; Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationJOURNAL OF NON-CRYSTALLINE SOLIDS
2016
Volume444Pages:23-30
ISSN0022-3093
AbstractAn increasing tendency of serrated flow with increasing loading rate of a La-based (La) metallic glass (MG) with pronounced Johari-Goldstein relaxation in nanoindentation is investigated, which is abnormal compared to precedent observations where the serrated flow normally decays with increasing loading rate as discovered in the referenced Zr-based (Zr) and Pd-based (Pd) MGs. Based on systematic analysis, a unified dimensionless number is proposed to elucidate the different origins of the abnormal serrated flow of the La MG and the normal serrated flow of the Zr and Pd MGs. The abnormal serrated flow behavior of the La MG provides critical implications in understanding the role of Johari-Goldstein relaxation in the flow of metallic glasses. (C) 2016 Elsevier B.V. All rights reserved.
KeywordMetallic Glasses Nanoindentation Plastic Deformation Johari-goldstein Relaxation
DOI10.1016/j.jnoncrysol.2016.04.036
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000379561300004
WOS KeywordMetallic glasses ; Nanoindentation ; Plastic deformation ; Johari-Goldstein relaxation
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics ; Materials Science, Multidisciplinary
Funding OrganizationThis work was financially supported by the National Nature and Science foundation of China under grants No. 11472287 and No. 11402269, the National Basic Research Program of China under grants No. 2012CB937500, and the CAS/SAFEA International Partnership Program for Creative Research Teams.
DepartmentLNM冲击动力学与新型材料力学性能
Classification二类/Q1
RankingTrue
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59549
Collection非线性力学国家重点实验室
Corresponding AuthorDai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhang M,Wang YJ,Dai LH,et al. Understanding the serrated flow and Johari-Goldstein relaxation of metallic glasses[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2016,444:23-30.
APA 张猛,Wang YJ,戴兰宏,&Dai, LH .(2016).Understanding the serrated flow and Johari-Goldstein relaxation of metallic glasses.JOURNAL OF NON-CRYSTALLINE SOLIDS,444,23-30.
MLA 张猛,et al."Understanding the serrated flow and Johari-Goldstein relaxation of metallic glasses".JOURNAL OF NON-CRYSTALLINE SOLIDS 444(2016):23-30.
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