Effect of sand blasting on structural, thermal, and mechanical properties of Zr sub(58.3)Cu sub(18.8)Al sub(14.6)Ni sub(8.3) bulk metallic glass

In the present work sand-blasting-induced structural, thermal, and mechanical effects were studied in Zr sub(58.3)Cu sub(18.8)Al sub(14.6)Ni sub(8.3) bulk metallic glass. It was observed that sand blasting favors disordering of the atomic configuration, formation of free volume and evolution of multiple intersecting shear bands. As a result, considerable compressive plasticity was achieved in sand-blasted samples. It was also observed that in order to superimpose the effect of pre-straining and extra free volume for improving compressive plasticity, there exists a limit to both parameters.