Structure of shear bands and plasticity of Zr-Cu-Al bulk metallic glasses

摘要

Plasticity of bulk metallic glasses (BMGs) varies depending on how shear bands form and propagate in compression. BMGs exhibiting multiple and diffuse shear bands show large plasticity compared to the BMGs with fewer and straighter shear bands. This difference in shear banding behavior depends on alloy compositions, cooling rates, and surface conditions.