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Abstract
The size dynamics of slip avalanches is instructive for revealing plastic deformation mechanisms of bulk metallic glasses (BMGs). Analogies of the productivity law of and the Båth’s law of seismic activity are used in the analysis of avalanches in BMGs. Two distinct types of avalanches are observed. Avalanche statistics consisting of the complementary cumulative size distribution and the relationship between avalanche durations and avalanche sizes conform with the mean-field theory. The aftershock number increases as a power-law with the mainshock size for small avalanches, which accords with the productivity law of seismic activity and can be deduced from the mean-field theory. Different statistical pictures of the Båth’s law of seismic activity are respectively identified in small and large avalanches. These results imply that room-temperature avalanches in BMGs agree with the mean-field theory and have seismic-like size dynamics.
Published Version
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