Abstract
The apparent activation energy spectrum (AES) of irreversible structural relaxation of Finemet Fe73.5Cu1Nb3Si13.5B9 metallic glass is reconstructed using the analysis of (i) linear heating and (ii) isothermal creep tests within the framework of the Directional Structural Relaxation (DSR) model. It is shown that the two independent ways of AES reconstruction used give consistent results indicating the validity of the corresponding DSR model flow equations. The AES determined, in accordance with previous findings, takes the form of a monotonously increasing function indicating that the potential profile for irreversible atomic rearrangements during irreversible structural relaxation might have more than two local minima.
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