| 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)
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| Source Publication | JOURNAL OF MATERIALS SCIENCE
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| 2018-02-01 | |
| Volume | 53Issue:4Pages:2956-2964 |
| ISSN | 0022-2461 |
| Abstract | The 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. |
| DOI | 10.1007/s10853-017-1725-y |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000416544500054 |
| WOS Keyword | JOHARI-GOLDSTEIN RELAXATION ; SHEAR TRANSFORMATION ZONE ; NANOINDENTATION CREEP ; INDENTATION CREEP ; ROOM-TEMPERATURE ; BEHAVIOR ; DEFORMATION ; FLOW ; TRANSITION ; LIQUID |
| WOS Research Area | Materials Science, Multidisciplinary |
| WOS Subject | Materials Science |
| Funding Organization | National 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 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77881 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.[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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| IrJ2018268.pdf（1612KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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