| The intrinsic and extrinsic factors for brittle-to-ductile transition in bulk metallic glasses | |
Wei YJ(魏宇杰) ; Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
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| Source Publication | THEORETICAL AND APPLIED FRACTURE MECHANICS
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| 2014-06 | |
| Volume | 71Pages:76-78 |
| ISSN | 0167-8442 |
| Abstract | We propose the ratio of critical strain energy density by distortional deformation over that by volumetric deformation as a material parameter to quantify the ductile-to-brittle transition in bulk metallic glasses (BMG). A BMG is regarded to be ductile (with high fracture toughness) if the ratio is low, implying shear dominated deformation precedes cavitation failure. In contrast, the BMG is brittle (with low fracture toughness) when the ratio is large, suggesting that cavitation is prone to occur before energy being dissipated via massive shear bands. The theory naturally reflects the intrinsic and extrinsic factors which could influence the brittle-to-ductile transition in bulk metallic glasses. (C) 2014 Elsevier Ltd. All rights reserved. |
| Keyword | Poissons Ratio Shear Bands |
| Subject Area | Engineering ; Mechanics |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000341555500009 |
| Funding Organization | Supports from Chinese Academy of Sciences via the Hundred Talent Programme, KJCX2-EW-L03, and the MOST 973 Project (2011CB711103) are acknowledged. |
| Department | LNM微结构计算力学（筹） |
| Classification | Q3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/49132 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Wei YJ,Wei, Y . The intrinsic and extrinsic factors for brittle-to-ductile transition in bulk metallic glasses[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2014,71:76-78. |
| APA | 魏宇杰,&Wei, Y .(2014).The intrinsic and extrinsic factors for brittle-to-ductile transition in bulk metallic glasses.THEORETICAL AND APPLIED FRACTURE MECHANICS,71,76-78. |
| MLA | 魏宇杰,et al."The intrinsic and extrinsic factors for brittle-to-ductile transition in bulk metallic glasses".THEORETICAL AND APPLIED FRACTURE MECHANICS 71(2014):76-78. |
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