title: Plasticity of ductile metallic glasses: a self-organized critical state.
abstract: We report a close correlation between the dynamic behavior of serrated flow and the plasticity in metallic glasses (MGs) and show that the plastic deformation of ductile MGs can evolve into a self-organized critical state characterized by the power-law distribution of shear avalanches. A stick-slip model considering the interaction of multiple shear bands is presented to reveal complex scale-free intermittent shear-band motions in ductile MGs and quantitatively reproduce the experimental observations. Our studies have implications for understanding the precise plastic deformation mechanism of MGs.
authors.affiliation: Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: B A
authors.initials: BA
authors.lastname: Sun
authors.forename: H B
authors.initials: HB
authors.lastname: Yu
authors.forename: W
authors.initials: W
authors.lastname: Jiao
authors.forename: H Y
authors.initials: HY
authors.lastname: Bai
authors.forename: D Q
authors.initials: DQ
authors.lastname: Zhao
authors.forename: W H
authors.initials: WH
authors.lastname: Wang