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. | |
发表期刊 | THEORETICAL AND APPLIED FRACTURE MECHANICS |
2014-06 | |
卷号 | 71页码:76-78 |
ISSN | 0167-8442 |
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. |
关键词 | Poissons Ratio Shear Bands |
学科领域 | Engineering ; Mechanics |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000341555500009 |
项目资助者 | Supports from Chinese Academy of Sciences via the Hundred Talent Programme, KJCX2-EW-L03, and the MOST 973 Project (2011CB711103) are acknowledged. |
课题组名称 | LNM微结构计算力学(筹) |
论文分区 | Q3 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/49132 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
推荐引用方式 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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