Direct atomic-scale evidence for shear-dilatation correlation in metallic glasses

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Direct atomic-scale evidence for shear-dilatation correlation in metallic glasses
	Wang YJ; Jiang MQ(蒋敏强); Tian ZL; Dai LH(戴兰宏)
刊名	SCRIPTA MATERIALIA
	2016-02
通讯作者邮箱	yjwang@imech.ac.cn ; Ihdai@lnm.imech.ac.cn
卷号	112 页码:37-41
关键词	Metallic glasses Shear-dilatation Molecular dynamics Density functional theory
ISSN号	1359-6462
通讯作者	Wang, YJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Wang, Yun-Jiang; Jiang, M. Q.; Tian, Z. L.; Dai, L. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Dai, L. H.] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China
中文摘要	Direct atomic-scale evidence is presented for the shear-dilatation correlation in metallic glasses via molecular dynamics and first-principles calculations. A quantitative parabolic relationship is established between the atomic local shear and hydrostatic volumetric strains by carrying out statistical analysis on a deformed glass model. The correction is further verified by density functional theory. Our atomistic demonstration of shear-dilatation correlation collaborates with the experimentally observed a few percent volume change in shear bands. It brings quantitative insights into the unique correlation between shear transformation and cavitation in metallic glasses. (C) 2015 Elsevier Ltd. All rights reserved.
分类号	一类
类目[WOS]	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	MOLECULAR-DYNAMICS ; PLASTIC-FLOW ; MECHANICAL-BEHAVIOR ; AMORPHOUS SOLIDS ; BANDS ; DEFORMATION ; ALLOYS
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1016/j.scriptamat.2015.09.005
语种	英语
WOS记录号	WOS:000365057500008
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58377]
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	Wang YJ,Jiang MQ,Tian ZL,et al. Direct atomic-scale evidence for shear-dilatation correlation in metallic glasses[J]. SCRIPTA MATERIALIA,2016,112:37-41.
APA	Wang YJ,Jiang MQ,Tian ZL,&Dai LH.(2016).Direct atomic-scale evidence for shear-dilatation correlation in metallic glasses.SCRIPTA MATERIALIA,112,37-41.
MLA	Wang YJ,et al."Direct atomic-scale evidence for shear-dilatation correlation in metallic glasses".SCRIPTA MATERIALIA 112(2016):37-41.