Internal stresses of deformation origin in bulk metallic glasses of the Pd-Cu-Ni-P system

Abstract

The effective internal shear stresses arising during unloading of bulk Pd-Cu-Ni-P metallic glasses deformed under conditions of homogeneous flow below the glass transition temperature Tg have been determined using measurements of the torque relaxation. It has been shown that the level of effective internal stresses gradually decreases with increasing temperature and approaches zero at T → Tg. Possible mechanisms of the formation of internal stresses with variations in the experimental conditions have been discussed.