Strain rate-dependent shear band behavior in bulk metallic glasses
文献类型：会议论文
| 作者 | Jiang MQ(蒋敏强) ; Dai LH(戴兰宏); Dai LH; Dai LH
|
| 出版日期 | 2009 |
| 会议名称 | 9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading |
| 会议日期 | SEP 07-11, 2009 |
| 会议地点 | Brussels, BELGIUM |
| 通讯作者邮箱 | lhdai@lnm.imech.ac.cn |
| 关键词 | Serrated Plastic-Flow Amorphous-Alloys Inhomogeneous Deformation Nanoindentation Instability Dynamics Fracture |
| 页码 | 993-998 |
| 通讯作者 | Dai LH |
| 中文摘要 | In this article, we review our recent advances in understanding the deformation behavior of a typical tough Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Vit 1) bulk metallic glass (BMG), as a model material, under various loading modes and strain rates, focusing particularly on the rate-dependence and formation mechanism of shear-banding. Dynamic and quasi-static mechanical experiments, including plate shear, shear punch and spherical indentation, and continuum as well as atomistic modeling on shear-banding are discussed. The results demonstrate that higher strain rate slows down the annihilation process of free volume, but promotes the free-volume coalescence, which is responsible for the rate-dependent shear banding. The physical origin of shear bands, that is the free volume softening underpinned by irreversible rearrangements of atoms, is unveiled. Finally, some concluding remarks are given. |
| 会议网址 | http://dx.doi.org/10.1051/dymat/2009139 |
| 会议录 | DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 2
 |
| 语种 | 英语 |
| ISBN号 | 978-2-7598-0473-3 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44346]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Dai LH; Dai LH |
| 推荐引用方式 GB/T 7714 | Jiang MQ,Dai LH,Dai LH,et al. Strain rate-dependent shear band behavior in bulk metallic glasses[C]. 见:9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading. Brussels, BELGIUM. SEP 07-11, 2009.http://dx.doi.org/10.1051/dymat/2009139. |
入库方式： OAI收割
来源：力学研究所
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