Stress relaxation in an Zr52.5Ti5Cu17.9Ni14.6Al10 bulk metallic glass

Abstract

The isothermal relaxation of stresses in a bulk metallic glass is measured at temperatures below the glass transition point. The kinetic law of relaxation is determined. It is argued that the stress relaxation in the temperature range covered is due to the irreversible structural relaxation oriented by an external stress and characterized by a distribution of activation energies.