Influence of thermal treatment on magnetoelastic Villari effect in Fe78Si13B9 amorphous alloy

This paper presents results of magnetoelastic investigation carried out on Fe78Si13B9 amorphous alloy both as quenched and after the thermal treatment. New method of applying uniform compressive stresses perpendicularly to the direction of magnetizing field was used. Results confirm that after heat treatment influence of stresses on the properties of the amorphous alloy is higher. This phenomenon is connected with increasing of the contribution of the stress-induced anisotropy energy in the total free energy of the material.