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

doi:10.1016/j.jallcom.2018.10.238

CORC > 金属研究所 > 中国科学院金属研究所

	Voronoi volume recovery during plastic deformation in deep-notched metallic glasses
	Cui, W.2; Pan, J.1; Blackwood, D. J.2; Li, Y.1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2019-03-05
卷号	776 页码:460-468
关键词	Metallic glass Molecular dynamics simulation Triaxial stress state Voronoi volume Plastic deformation
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2018.10.238
通讯作者	Pan, J.(jiepan@imr.ac.cn) ; Li, Y.(liyi@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000453826200052
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/131028]
专题	金属研究所_中国科学院金属研究所
通讯作者	Pan, J.; Li, Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 100016, Liaoning, Peoples R China 2.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore
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.