Hydrogen-Induced Damping Peak Temperatures in Bulk Metallic Glasses

Abstract

Measurements of the H-induced damping peak in Zr-based multi-component metallic glasses, with different tendency to quasicrystal formation, are added to previous reviews of the properties of this damping peak in metallic glasses, and also compared to Ti-Zr-Ni quasicrystals. The results, mainly discussed in terms of a Snoek-type relaxation mechanism for both structure types, indicate a negative correlation between the degree of icosahedral order and the temperature of the damping peak, so that improved damping properties of hydrogen-absorbing bulk metallic glasses can apparently be expected from stronger deviations from icosahedral short-range order.

Interactions between solute atoms in Fe–Si–Al–C alloys as studied by mechanical spectroscopy

“…This, however, leads us to more general problems of understanding interstitial relaxation in disordered structures, as exemplified e.g. by hydrogen in amorphous alloys [1,14,15].…”