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Voronoi volume recovery during plastic deformation in deep-notched metallic glasses
Cui, W.; Pan, J.; Blackwood, D. J.; Li, Y.
2019-03-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume776Pages:460-468
AbstractMany 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.
KeywordMetallic glass Molecular dynamics simulation Triaxial stress state Voronoi volume Plastic deformation
Indexed BySCI
Language英语
WOS IDWOS:000453826200052
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81288
Collection中国科学院金属研究所
Recommended Citation
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.
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