The intrinsic and extrinsic factors for brittle-to-ductile transition in bulk metallic glasses
文献类型：期刊论文
| 作者 | Wei YJ(魏宇杰)
|
| 刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS
 |
| 出版日期 | 2014-06 |
| 卷号 | 71页码:76-78 |
| 通讯作者邮箱 | yujie_wei@lnm.imech.ac.cn |
| 关键词 | POISSONS RATIO SHEAR BANDS |
| ISSN号 | 0167-8442 |
| 产权排序 | Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | 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. |
| 学科主题 | Engineering; Mechanics |
| 分类号 | Q3 |
| 收录类别 | SCI ; EI |
| 资助信息 | Supports from Chinese Academy of Sciences via the Hundred Talent Programme, KJCX2-EW-L03, and the MOST 973 Project (2011CB711103) are acknowledged. |
| 原文出处 | http://dx.doi.org/10.1016/j.tafmec.2014.06.001 |
| 语种 | 英语 |
| WOS记录号 | WOS:000341555500009 |
| 公开日期 | 2014-11-03 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49133]  |
| 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 | Wei YJ. 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.(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."The intrinsic and extrinsic factors for brittle-to-ductile transition in bulk metallic glasses".THEORETICAL AND APPLIED FRACTURE MECHANICS 71(2014):76-78. |
入库方式： OAI收割
来源：力学研究所
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