Ductile to brittle transition of fracture of a Zr-based bulk metallic glass: Strain rate effect
文献类型：期刊论文
| 作者 | Li MC; Jiang MQ(蒋敏强) ; Li G; He L; Sun J; Jiang F
|
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2016 |
| 卷号 | 77页码:34-40 |
| 通讯作者邮箱 | jiangfeng@mail.xjtu.edu.cn |
| 关键词 | Metallic glasses Fracture Strain rate Ductile-to-brittle transition |
| ISSN号 | 0966-9795 |
| 产权排序 | [Li, M. C.; Li, G.; He, L.; Sun, J.; Jiang, F.] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China; [Jiang, M. Q.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China. |
| 中文摘要 | Quasi-static and dynamic tensile experiments were conducted on a Zr-based bulk metallic glass at room temperature. A significant ductile-to-brittle transition was identified with increasing strain rate, based on the changes in the macroscopic fracture mode from shear to normal tension and in the microscopic fracture feature from vein patterns to fine dimples and/or nanoscale periodic corrugations. According to the Mohr-Coulomb criterion, it is revealed that such a transition is due to the competition between the intrinsic critical shear and tensile strengths at different strain rates. Microscopically, the strain-rate induced transition is attributed to the change in the motion of local atomic groups from shear transformation zone to tension transformation zone, in which the characteristic volume of shear transformation zone is a key parameter. (C) 2016 Published by Elsevier Ltd. |
| 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] | Metallic glasses ; Fracture ; Strain rate ; Ductile-to-brittle transition |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1016/j.intermet.2016.07.004 |
| 语种 | 英语 |
| WOS记录号 | WOS:000384383800005 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59714]  |
| 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 | Li MC,Jiang MQ,Li G,et al. Ductile to brittle transition of fracture of a Zr-based bulk metallic glass: Strain rate effect[J]. INTERMETALLICS,2016,77:34-40. |
| APA | Li MC,蒋敏强,Li G,He L,Sun J,&Jiang F.(2016).Ductile to brittle transition of fracture of a Zr-based bulk metallic glass: Strain rate effect.INTERMETALLICS,77,34-40. |
| MLA | Li MC,et al."Ductile to brittle transition of fracture of a Zr-based bulk metallic glass: Strain rate effect".INTERMETALLICS 77(2016):34-40. |
入库方式： OAI收割
来源：力学研究所
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