Controlling shear band instability by nanoscale heterogeneities in metallic nanoglasses

Abstract Strain localization during plastic deformation drastically reduces the shear band stability in metallic glasses, ultimately leading to catastrophic failure. Therefore, improving plasticity of glasses has been a long-standing goal for several decades. In this regard, nanoglass, novel type glass, proposed exhibit differences short and medium range order at interfacial regions, which could promote formation transformation zones. present work, by introducing heterogeneities nanoscale, both crystalline amorphous, significant improvements are realized micro-compression tests. Both amorphous dispersions resulted smaller strain bursts deformation. The yield strength is found increase significantly Cu–Zr nanoglasses compared corresponding conventional glasses. reasons mechanical behavior importance nanoscale tailor properties discussed detail. Graphic