Instability of crack propagation in brittle bulk metallic glass
文献类型：期刊论文
| 作者 | Wang, G ; Chan, KC ; Xu, XH ; Wang, WH |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2008 |
| 卷号 | 56期号:19页码:5845 |
| 关键词 | DYNAMIC FRACTURE FLOW HYPERELASTICITY DISTRIBUTIONS DEFORMATION PLASTICITY MECHANISM CLEAVAGE BEHAVIOR LIQUID |
| ISSN号 | 1359-6454 |
| 通讯作者 | Chan, KC: Hong Kong Polytech Univ, Dept Ind & Syst Engn, Yuk Choi Rd, Kowloon, Hong Kong, Peoples R China. |
| 中文摘要 | The instability of the crack tip in brittle Mg-based bulk metallic glass (BMG) is studied. The formation of various fractographic surfaces of the BMG is associated with the instability of the fluid meniscus, which is due to viscous fluid matter being present on the fracture process zone. Depending on the values of the wavelength of the initial perturbation of the fluid meniscus and the local stress intensity factor, different fracture surface profiles, i.e. a dimple-like structure, a periodic corrugation pattern and a pure mirror zone are formed. The fractographic evolution is significantly affected by the applied stress. A decreased fracture Surface roughness is observed under a low applied stress. An increased fracture surface roughness, which has frequently been reported by other researchers, is also observed in the present studies under a high applied stress. Unique fractographic features are attributed to the non-linear hyperelastic stiffening for less softening) mechanism. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | Research Committee of The Hong Kong Polytechnic University [G-YX90]; NSF of China [50621061, 50731008]; MOST [2007CB613904] |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40043]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, G,Chan, KC,Xu, XH,et al. Instability of crack propagation in brittle bulk metallic glass[J]. ACTA MATERIALIA,2008,56(19):5845. |
| APA | Wang, G,Chan, KC,Xu, XH,&Wang, WH.(2008).Instability of crack propagation in brittle bulk metallic glass.ACTA MATERIALIA,56(19),5845. |
| MLA | Wang, G,et al."Instability of crack propagation in brittle bulk metallic glass".ACTA MATERIALIA 56.19(2008):5845. |
入库方式： OAI收割
来源：物理研究所
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