Voronoi volume recovery during plastic deformation in deep-notched metallic glasses

doi:10.1016/j.jallcom.2018.10.238

IMR OpenIR

	Voronoi volume recovery during plastic deformation in deep-notched metallic glasses
	Cui, W.1; Pan, J.2; Blackwood, D. J.1; Li, Y.2
通讯作者	Pan, J.(jiepan@imr.ac.cn) ; Li, Y.(liyi@imr.ac.cn)
	2019-03-05
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	776 页码:460-468
摘要	Many previous simulations of the plastic deformation in metallic glasses showed that shear banding is the dominant mode accompanied by Voronoi volume continuous generation and softening. In the present work, we report a contrary phenomenon where Voronoi volume recovery is dominant during plastic deformation in CuZr metallic glasses under tension. By creating a notched geometry, the deformation mode of notched samples transits from shear banding to necking due to the introduction of triaxial stress state. With the suppressing of shear banding, a notch strengthening and structure ordering phenomenon together with the recovery of Cu-centered full-icosahedra fraction are also observed. The present work enriches our understanding on the mechanical behavior and deformation mechanism of metallic glasses. (C) 2018 Elsevier B.V. All rights reserved.
关键词	Metallic glass Molecular dynamics simulation Triaxial stress state Voronoi volume Plastic deformation
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jallcom.2018.10.238
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871217] ; National Natural Science Foundation of China[51401220] ; National Natural Science Foundation of China[51471165]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000453826200052
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/131029
专题	中国科学院金属研究所
通讯作者	Pan, J.; Li, Y.
作者单位	1.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 100016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Cui, W.,Pan, J.,Blackwood, D. J.,et al. Voronoi volume recovery during plastic deformation in deep-notched metallic glasses[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,776:460-468.
APA	Cui, W.,Pan, J.,Blackwood, D. J.,&Li, Y..(2019).Voronoi volume recovery during plastic deformation in deep-notched metallic glasses.JOURNAL OF ALLOYS AND COMPOUNDS,776,460-468.
MLA	Cui, W.,et al."Voronoi volume recovery during plastic deformation in deep-notched metallic glasses".JOURNAL OF ALLOYS AND COMPOUNDS 776(2019):460-468.