Shock Wave Response Of A Zirconium-Based Bulk Metallic Glass And Its Composite

A zirconium-based bulk glass and its composite were subjected to planar impact loading. A surprisingly low amplitude elastic precursor and bulk wave, corresponding to the elastic response of the "frozen structure" of the intact metallic glasses, were observed to precede the rate-dependent large deformation shock wave. A concave downward curvature after in the initial increase of the U8-Up shock Hugoniots suggests that a phase-change-like transition occurred during shock compression. Further, compression damage occurred due to the shear localisation.