Synthesis and characterization of Mg-based bulk metallic glasses in the Mg–Ag–Y–(Cu) system

Abstract

This study presents a series of new Mg–Ag–Y and Mg–Ag–Y–Cu bulk metallic glasses (BMGs) designed to obtain Mg-rich ductile glasses. Compressive ductility is observed in the selected alloys tested, involving compressive plastic strains of about 0.6% for the ternary BMGs obtained. Minor amounts of Cu generate a general increase in plastic strain up to about 0.8%. We report on the alloy design methodology, critical casting size, thermophysical properties and compression test data of these new alloys.