Premium
Transition of Failure Mode and Enhanced Plastic Deformation of Metallic Glass by Multiaxial Confinement
Author(s) -
Wu FuFa,
Zhang ZheFeng,
Mao Scott XingYuan
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200900023
Subject(s) - materials science , shear (geology) , amorphous metal , brittleness , composite material , shear band , toughening , deformation (meteorology) , plasticity , metal , metallurgy , toughness , alloy
Multiple shear bands are formed in a confined metallic‐glass specimen under small‐punch loading. The intersecting of shear bands and the formation of profuse secondary shear bands are promoted under this confinement; accordingly, the failure mode changes from catastrophic fracture to stable multiple shear banding. Multiaxial confinement is an effective method to stabilize shear banding and further enhance the mechanical performance, especially the plastic deformation capability of metallic glass. These results present a simple step for making shear banding more stable and exploiting the shear‐deformation capability of metallic glasses, leading to the toughening of brittle metallic glasses and potentially broadening their applications.