Abstract
The steady-state creep rate, ϵge, of amorphous Fe 40Ni 40P 14B 6 has been measured under stresses, σ, ranging between 0.12 GPa and 1.41 GPa at temperatures between 524 and 646 K (corresponding to 0.80 and 0.99 of the absolute glass transition temperature). The creep rates were found to satisfy the equation ϵ ̇ geασ (2,00 ± 0,15) t a (0,54 ± 0,05) at any particular temperature other than the highest temperature, for finite values of the pre-annealing time t a (the time spent by the specimen at temperature before the application of stress). At the highest temperature of 646 K creep tests were prolonged to study the effect of crystallization on ϵge. The variation of ϵge with volume fraction of crystal was found to be in excellent agreement with Einstein's predictions for the viscosity of a slurry containing a known volume fraction of hard particles.
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