Relationship between thermophysical and mechanical properties of metallic glasses

Mechanical (elastic moduli, yield strength, hardness) and thermophysical (glass transition, fragility indexes, heat content of shear bands) properties of metallic glasses are discussed and compared using an extensive database containing values for different families of alloys.The relationships between some of the above quantities are analysed to get insight into the shear band energetics and propagation. The failure by shear and the consequent temperature rise due to the release of elastic energy are analysed also with the help of a finite element simulation with attention to the length scales for each process. The data for different families of alloys are compared. The results of analyses and simulation are employed for discussing serrated flow and shear band propagation with an example on an Al-based metallic glass.