Influence of the heat treatment method on magnetic and mechanical properties of the Fe73.5Si13.5B9Nb3Cu1 alloy

The magnetic and mechanical properties of amorphous ribbons heat treated in a conventional furnace are compared with those observed in current-annealed samples (in which the heating is produced by a flow of an electric current through the sample). To perform this comparison, a current-to-temperature semiempirical function is used, and different parameters are fitted. The current-annealed samples present less brittleness when annealed near the nanocrystallization temperature, while maintaining the well-known excellent soft magnetic properties.