Elastic property and its response to pressure in a typical bulk metallic glass

Abstract Acoustic velocities, elastic constants and thermodynamic parameters upon pressure up to 2 GPa of typical Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass (BMG) have been studied by using a pulse echo overlap method. The results indicate that the glass forming ability (GFA) has a relation with the elastic constants for a glass forming system. The compression curve of the BMG is interposed among its components, and the BMG exhibits small volume changes upon pressure, confirming that the BMG has similar atomic close-packed configurations with elements which may closely related to the origin of its excellent GFA.