Crack branching instability and directional stability in dynamic fracture of a tough bulk metallic glass
文献类型：期刊论文
| 作者 | Jiang MQ(蒋敏强) ; Meng JX(孟积兴); Keryvin V; Dai LH(戴兰宏)
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| 刊名 | Intermetallics
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| 出版日期 | 2011 |
| 卷号 | 19期号:12页码:1775-1779 |
| 通讯作者邮箱 | mqjiang@imech.ac.cn; lhdai@lnm.imech.ac.cn |
| 关键词 | Brittleness And Ductility Fracture Mode Glasses Metallic Energy-Dissipation Deformation Transition Alloys Size |
| ISSN号 | 0966-9795 |
| 产权排序 | [Jiang, MQ; Dai, LH] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China; [Jiang, MQ; Dai, LH] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China; [Meng, JX] Univ Rennes 1, Appl Mech Lab, LARMAUR, ERL CNRS 6274, F-35042 Rennes, France; [Meng, JX; Keryvin, V] Univ Bretagne Sud, Dept Mat Engn, LIMATB, EA4250,Ctr Rech St Maude, F-56321 Lorient, France |
| 通讯作者 | Dai, LH (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China |
| 合作状况 | 国际 |
| 中文摘要 | We report the ductile fracture behavior of a tough Zr-based bulk metallic glass (BMG) in the dynamic regime, where a rapid moving crack initiates by a Mode II shearing and then advances through plastic voids growth and linking. A clear fractographic evolution from river-like vein pattern to chevron-like zone where microscopic dimples and voids coexist, followed by crack microbranching pattern, was observed on the dynamic fracture surfaces. A terminal crack velocity of about 0.5 of the Rayleigh wave velocity was determined for the onset of such microbranching instability. Furthermore, the dynamic branched daughter cracks are favored to continue in their original mother crack plane, having "directional stability". Our findings may increase the understanding of the dynamic fracture of BMGs with both glassy nature and metallic bonding character. (C) 2011 Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry; Materials Science; Metallurgy & Metallurgical Engineering |
| 分类号 | 一类 |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | ENERGY-DISSIPATION ; DEFORMATION ; TRANSITION ; ALLOYS ; SIZE |
| 收录类别 | SCI ; EI |
| 资助信息 | Financial support is from the NSFC (Grants Nos. 10725211, 11002144, 11023001 and 11021262), the National Natural Science Foundation of China-NSAF. Grant No: 10976100, and the National Key Basic Research Program of China (Grant No. 2009CB724401). |
| 原文出处 | http://dx.doi.org/10.1016/j.intermet.2011.07.026 |
| 语种 | 英语 |
| WOS记录号 | WOS:000296548500002 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44891]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Jiang MQ,Meng JX,Keryvin V,et al. Crack branching instability and directional stability in dynamic fracture of a tough bulk metallic glass[J]. Intermetallics,2011,19(12):1775-1779. |
| APA | 蒋敏强,孟积兴,Keryvin V,&戴兰宏.(2011).Crack branching instability and directional stability in dynamic fracture of a tough bulk metallic glass.Intermetallics,19(12),1775-1779. |
| MLA | 蒋敏强,et al."Crack branching instability and directional stability in dynamic fracture of a tough bulk metallic glass".Intermetallics 19.12(2011):1775-1779. |
入库方式： OAI收割
来源：力学研究所
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