AVRAMI AND KISSINGER THEORIES FOR CRYSTALLIZATION OF METALLIC AMORPHOUS-ALLOYS

Avrami and Kissinger theories for the study of the crystallization kinetics of amorphous metallic alloys are briefly reviewed. It is shown that due to the mathematical expressions of the non-isothermal equations for both theories, and the relative order of magnitude of the commonly observed crystallization temperatures and heating rates used in DSC equipment, both theories give very similar results. The Avrami theory, however, clearly appears as a more realistic phenomenological model for the case of crystallization from an amorphous metallic alloy.