High-strength Cu-based crystal-glassy composite with enhanced ductility

摘要

Low ductility of glassy alloys prevents their technical application as structural materials. In this work, we study the Cu-based crystal-glassy composite material with good mechanical properties. Formation of the Cu_(10)Zr_(7) phase in the glassy matrix of a high-strength Cu_(50)Zr_(30)Ti_(10)Nb_(10) bulk alloy upon solidification led to higher Young's modulus and enhanced ductility of such a composite compared to Cu-based glassy alloys. The as-cast structure was studied by x-ray diffraction and scanning electron microscopy.