| A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses |
| Zhou D; Hou B; Li BJ; Zhang SY; Dai LH(戴兰宏); Li YL
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| 发表期刊 | INTERMETALLICS
 |
| 2018-05-01
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| 卷号 | 96页码:94-103 |
| ISSN | 0966-9795
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| 摘要 | The rate effect on the deformation mode of bulk metallic glasses (BMGs) is investigated by a comparative study between ductile and brittle compositions via real-time photographing. The strain-rate controls the deformation mode transition from shear-dominated sliding under quasi-static compression to cracking-dominated fracture under dynamic compression. In ductile BMGs, progressive sliding occurs at lower strain rate and contributes to a stable deformation manner. In brittle BMGs, however, unstable deformation occurs through rapid sliding even under quasi-static compression. Both ductile and brittle BMGs undergo unstable deformation under dynamic compression. The rate-dependent and composition-dependent tendency of stable or unstable deformation is well characterized by a model based on the ratio of the applied strain energy to the critical dissipation energy at the local shear banding region. |
| 关键词 | Metallic Glass
Rate Effect
Deformation Mode
Ductile
Brittle
|
| DOI | 10.1016/j.intermet.2018.01.020
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
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| WOS记录号 | WOS:000430891300014
|
| 关键词[WOS] | MULTIPLE SHEAR BANDS
; STRAIN-RATE
; COMPRESSIVE BEHAVIOR
; SERRATED FLOW
; FRACTURE
; EVOLUTION
; PLASTICITY
; TEMPERATURE
; STABILITY
; CRACKING
|
| WOS研究方向 | Chemistry
; Materials Science
; Metallurgy & Metallurgical Engineering
|
| WOS类目 | Chemistry, Physical
; Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
|
| 项目资助者 | Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (NPU)(CX201707)
; National Science Foundation(11572260
; 11527803
; 11790292)
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| 论文分区 | 一类
|
| 力学所作者排名 | 5
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/77464
|
| 专题 | 非线性力学国家重点实验室
|
推荐引用方式
GB/T 7714 |
Zhou D,Hou B,Li BJ,et al. A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses[J]. INTERMETALLICS,2018,96:94-103.
|
| APA |
Zhou D,Hou B,Li BJ,Zhang SY,戴兰宏,&Li YL.(2018).A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses.INTERMETALLICS,96,94-103.
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| MLA |
Zhou D,et al."A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses".INTERMETALLICS 96(2018):94-103.
|
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