Plasticity of ductile metallic glasses: a self-organized critical state.
نویسندگان
چکیده
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.
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ورودعنوان ژورنال:
- Physical review letters
دوره 105 3 شماره
صفحات -
تاریخ انتشار 2010