STUDYOFMAGNETICSTABILITYOFMETALLICGLASS(Fe0.1Ni0.33Co0.55Cr0.02)78Si8B14（Ⅱ）——IRREVERSIBLEMAGNETICPERMEABILITYDECAYWITHRESPECTTODEMAGNETIZATION

<正> The isochronal magnetic permeability decay has been measured in the temperature range 100—300℃, the kinetic behavior of the decay investigated, the distribution of the activation energies in the decay process estimated and the decay spectrum with a single peak found. The relaxation of coercive force, core loss and the Curie temperature have also been studied and the reversibility of the decay and crossover effect observed. It has been found that the positions of the relaxation peaks of these magnetic parameters are close to those of the permeability decay.