Microscopic dynamics perspective on the relationship between Poisson ratio and ductility of metallic glasses

preprint2013arXivOpen access

Abstract

In metallic glasses a clear correlation had been established between plasticity or ductility with the Poisson ratio and alternatively the ratio of the elastic bulk modulus to the shear modulus, K/G. Such a correlation between these two macroscopic mechanical properties is intriguing and is challenging to explain from the dynamics on a microscopic level. Such a microscopic explanation is provided in this paper.

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