High-Density Bulk Metallic Glasses and Their Composites for Kinetic Energy Penetrator Applications: Process, Structure and Properties

A review of the present understanding on high-density bulk metallic glass (BMG) composites with a specific emphasis on their application in kinetic energy (KE) penetrators is presented. The paper deals with materials requirement for producing KE penetrator and the need to use high-density BMG to enhance the depth of penetration using the concept of “self-sharpening” behavior caused by shear band formation. The initial sections have been devoted to the description of different BMGs, their formability, processing and mechanical properties. This is followed by a brief account on the evolution of high-density BMG, their composites and their possible application in ammunition. Finally, the contribution of the present group in light of processing and evaluation of high-density BMG composites for above-mentioned application have been highlighted.