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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.
Source PublicationTHEORETICAL AND APPLIED FRACTURE MECHANICS
2014-06
Volume71Pages:76-78
ISSN0167-8442
AbstractWe 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.
KeywordPoissons Ratio Shear Bands
Subject AreaEngineering ; Mechanics
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000341555500009
Funding OrganizationSupports from Chinese Academy of Sciences via the Hundred Talent Programme, KJCX2-EW-L03, and the MOST 973 Project (2011CB711103) are acknowledged.
DepartmentLNM微结构计算力学(筹)
ClassificationQ3
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49133
Collection非线性力学国家重点实验室
Corresponding AuthorWei, 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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