A Study of the Compressive Properties of Bulk Metallic Glass Composite

This study aims to investigates the plastic behavior and strength of tungsten wire-, molybdenum wire-, and tantalum wire-reinforced bulk metallic glass composites of Cu₅₀Zr₄₃A_l7, Zr₅₇Nb₅Cu₁₅Al₁₀Ti₁₂ and Mg₆₅Cu₂₅Gd₁₀. Bulk metallic glass materials are of brittle materials with low plasticity and high strength. Through reinforcing these materials with tungsten, molybdenum and tantalum wires, their plasticity and strength increases and decreases, respectively.The simulation of experiments using the Abaqus software in the present study showed that the reinforcement phase resulted in increased plastic deformation and decreased yield strength of bulk metallic glasses Cu₅₀Zr₄₃A_l7, Zr₅₇Nb₅Cu₁₅Al₁₀Ti₁₂ and Mg₆₅Cu₂₅Gd₁₀, among which the strength of those composites reinforced with tungsten wires, due to the high strength of tungsten, is very close to the strength of those in the matrix phase and a significant amount of plastic deformation is observed in them. The reinforcement phase of molybdenum increases the plastic deformation more than that of tungsten and tantalum. Tantalum, due to its low strength, reduces the total strength of the composite and, in turn, increases the plastic deformation of the bulk metallic glass.