| Spiral fracture in metallic glasses and its correlation with failure criterion | |
Lei XQ(雷现奇) ; Wei YJ(魏宇杰); Wei BC(魏炳忱); Wang WH(汪卫华); Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
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| Source Publication | ACTA MATERIALIA
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| 2015-10-15 | |
| Volume | 99Pages:206-212 |
| ISSN | 1359-6454 |
| Abstract | We report the observation of spiral fracture of the metallic glass Zr41Ti14Cu12.5Ni10Be22.5 (at.%) subjected to both shear and normal stresses. The spiral angle (that between the spiral line and the loading axis) increases as we gradually change the normal stress from tensile (positive) to compressive (negative). The spiral nature of the fractured surface leads to a left-handed helix fractography pattern in tension, and a right-handed helix in compression. The Mohr Coulomb type of failure is essential for the unique spiral fracture. The use of spiral angles resulted from torsion tension experiments provide another novel experimental strategy to examine the failure criterion as well as stress state dependence of deformation mechanisms which lead to failure in metallic glasses. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Metallic Glasses Failure Criterion Mohr-coulomb Spiral Fracture |
| DOI | 10.1016/j.actamat.2015.08.008 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000362145400022 |
| WOS Keyword | HYDROSTATIC-PRESSURE ; MECHANICAL-BEHAVIOR ; AMORPHOUS-ALLOYS ; YIELD CRITERION ; DEFORMATION ; FLOW ; INDENTATION ; STRAIN ; LOCALIZATION ; COMPRESSION |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | The authors acknowledge support from National Natural Science Foundation of China (NSFC) (11425211, 11021262, 11272327), MOST 973 of China (2012CB937500). The authors are grateful to Prof. J. Lewandowski and Prof. A. Lindsay Greer for fruitful discussion. |
| Department | LNM微结构计算力学（筹） |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58409 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Lei XQ,Wei YJ,Wei BC,et al. Spiral fracture in metallic glasses and its correlation with failure criterion[J]. ACTA MATERIALIA,2015,99:206-212. |
| APA | Lei XQ,Wei YJ,Wei BC,Wang WH,&Wei, YJ .(2015).Spiral fracture in metallic glasses and its correlation with failure criterion.ACTA MATERIALIA,99,206-212. |
| MLA | Lei XQ,et al."Spiral fracture in metallic glasses and its correlation with failure criterion".ACTA MATERIALIA 99(2015):206-212. |
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| File Name/Size | DocType | Version | Access | License | ||
| J2015-051.pdf（1311KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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