Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding
Kosiba, K.1; Sopu, D.2,3; Scudino, S.1; Zhang, L.4; Bednarcik, J.5; Pauly, S.1
Corresponding AuthorPauly, S.(
AbstractStructural heterogeneities in monolithic metallic glasses, i.e. free volume variations or stress/strain fields, are known to be pivotal for their plasticity but the mechanisms how they affect irreversible deformation remain poorly understood. We show that flash-annealing is a capable tool for modifying the free volume content and its distribution, which creates non-affine stress fields in a monolithic CuZr-based bulk metallic glass. Rather than the overall free volume, mu m-scale regions of relaxed and rejuvenated glass govern plastic deformation. Complementary molecular dynamics simulations underpin the importance of the interfaces between relaxed and rejuvenated volumes for shear band proliferation. Not only can we reach unmatched states of metastability in metallic glasses with the present approach but also better understand the mechanisms underlying plasticity in monolithic but structurally heterogeneous metallic glasses.
Funding OrganizationGerman Science Foundation (DFG) ; Leibniz Program
Indexed BySCI
Funding ProjectGerman Science Foundation (DFG)[PA 2275/2-1] ; German Science Foundation (DFG)[PA 2275/4-1] ; German Science Foundation (DFG)[KO 5771/1-1] ; German Science Foundation (DFG)[SO 1518/1-1] ; Leibniz Program[EC 111/26-1]
WOS Research AreaEngineering ; Materials Science ; Mechanics
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
WOS IDWOS:000471088600009
Citation statistics
Cited Times:71[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorPauly, S.
Affiliation1.IFW Dresden, Inst Complex Mat, Helmholtzstr 20, D-01069 Dresden, Germany
2.Tech Univ Darmstadt, Inst Mat Wissensch, Otto Berndt Str 3, D-64287 Darmstadt, Germany
3.Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
5.DESY Photon Sci, Notkestr 85, D-22607 Hamburg, Germany
Recommended Citation
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Kosiba, K.,Sopu, D.,Scudino, S.,et al. Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2019,119:156-170.
APA Kosiba, K.,Sopu, D.,Scudino, S.,Zhang, L.,Bednarcik, J.,&Pauly, S..(2019).Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding.INTERNATIONAL JOURNAL OF PLASTICITY,119,156-170.
MLA Kosiba, K.,et al."Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding".INTERNATIONAL JOURNAL OF PLASTICITY 119(2019):156-170.
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