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.

综述了目前对高密度块状金属玻璃 (BMG) 复合材料的理解，特别强调了它们在动能 (KE) 穿透器中的应用。本文讨论了生产 KE 穿甲弹的材料要求以及使用高密度 BMG 以利用剪切带形成引起的“自锐化”行为概念来提高穿甲深度的必要性。最初的部分专门用于描述不同的 BMG、它们的可成形性、加工和机械性能。随后简要介绍了高密度 BMG 的演变、它们的复合材料及其在弹药中的可能应用。最后，强调了本小组在用于上述应用的高密度 BMG 复合材料的加工和评估方面的贡献。