Magnetic and structural properties of electron irradiated Fe(Co)SnB alloys

Rapidly quenched alloys of composition Fe83Sn5B12 and Fe78Co5Sn5B12 were irradiated by electron beam with 4 MGy dose. The aim of the presented study is examination of the influence of irradiation on magnetic properties and microstructure in as-cast and nanocrystallized ribbons. Amorphous samples after irradiation retained their soft magnetic properties and the hysteresis loops obtained a more upright shape with a higher value of saturation magnetic polarization. The Co-containing ribbon is superior in terms of magnetic softness and even after irradiation its saturation polarization is significantly higher with the value of 1.79 T.