All metallic glasses (MGs), irrespective of their compositions, become brittle in the intermediate temperature range of 0.6–0.7 Tg However, most materials are expected to carry higher strains during deformation with increasing temperature. This behavior of MGs is explained by describing the competition between shear banding and diffusive relaxation processes, and is reminiscent of the “intermediate temperature ductility minimum” observed in polycrystalline metals.
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Wang et al. (2017) studied this question.
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