Understanding the serrated flow and Johari-Goldstein relaxation of metallic glasses | |
Zhang M(张猛); Wang YJ(王云江); Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. | |
发表期刊 | JOURNAL OF NON-CRYSTALLINE SOLIDS |
2016 | |
卷号 | 444页码:23-30 |
ISSN | 0022-3093 |
摘要 | An 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. |
关键词 | Metallic Glasses Nanoindentation Plastic Deformation Johari-goldstein Relaxation |
DOI | 10.1016/j.jnoncrysol.2016.04.036 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000379561300004 |
关键词[WOS] | Metallic glasses ; Nanoindentation ; Plastic deformation ; Johari-Goldstein relaxation |
WOS研究方向 | Materials Science |
WOS类目 | Materials Science, Ceramics ; Materials Science, Multidisciplinary |
项目资助者 | This 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. |
课题组名称 | LNM冲击动力学与新型材料力学性能 |
论文分区 | 二类/Q1 |
力学所作者排名 | 1 |
RpAuthor | 戴兰宏 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/59549 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
推荐引用方式 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 | Zhang M,Wang YJ,Dai LH,&Dai, LH .(2016).Understanding the serrated flow and Johari-Goldstein relaxation of metallic glasses.JOURNAL OF NON-CRYSTALLINE SOLIDS,444,23-30. |
MLA | Zhang M,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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