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Schematic displacement profile (solid curve) across a shear band between two rigid blocks of metallic glass moving relative to each other (arrows). Structural changes are found in the shaded band where the shear and shear rate are highest. The profile of raised temperature around the band has a width much greater than the shaded band thickness.
Viscosity data for metallic glasses: (metastable) equilibrium for (at. %), isoconfigurational for , replotted from Ref. 28. At the melting temperature of the alloy, the extrapolated isoconfigurational viscosity of an unrelaxed glass is much higher (arrows at A) than the equilibrium value. The temperatures are normalized with respect to the glass-transition temperature .
Summary of observations of shear-band thickness in metallic glasses.
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