ANALYSIS OF REVERSIBLE STRUCTURAL RELAXATION IN AMORPHOUS-ALLOYS WITHTHE ACTIVATION-ENERGY SPECTRUM MODEL

The reversible structural relaxation, which was induced by annealing t reatment at about 150 K below the crystallization temperature, has bee n confirmed by a measurement of the residual electrical resistance at liquid-N-2 temperature for amorphous Ni68Cr14B18 and Co50Cr30B20 alloy s. The temperature coefficient of resistance has also been measured at 293 K for the amorphous Ni68Cr14B18 alloy and shows a similar reversi ble change during cyclic annealing within a given temperature range. W ithin the framework of the activation energy spectrum model, the isoth ermal changes in the residual resistance of the pre-annealed Co50Cr30B 20 alloy and the enthalpy relaxation of the pre-annealed Fe75B10Si15 a lloy have been analyzed and the activation energy spectra obtained.