The results of low-temperature (30 to 300K) and low-frequency (100 to 1000Hz) internal friction investigations of such glasses were summarized. It was shown that inhomogeneous deformation led to a number of internal friction anomalies which were almost identical to those which were observed in pre-deformed crystalline metals. The internal friction behavior of as-cast metallic glasses exhibited no peculiarities. The main features of the damping of cold-worked metallic glasses were the appearance of large relaxation internal friction peaks (analogous to Hasiguti peaks in crystals) and a hysteresis damping which could be suppressed by large pre-deformations or irradiation. It was argued that the inhomogeneous deformation of glassy structures resulted in the appearance of new dislocation-like defects (which were not characteristic of the as-cast state) that governed the observed anelastic anomalies.

V.A.Khonik: Journal of Alloys and Compounds, 1994, 211-212, 114-7