Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. IV France 06 (1996) C8-629-C8-632
IF Studies of Amorphous Fe81B13.5Si3.5C2 Alloy : Thermal and Magnetic Structural BehavioursA.M.T. Aboki1, 2 and E. Ratovondrahona1, 2
1 Laboratoire de Métallurgie Structurale, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris cedex 05, France
2 CECM, 15 rue Georges Urbain, 94407 Vitry-sur-Seine cedex, France
Ferromagnetic Fe81B13.5Si3.5C2 amorphous alloy exhibit also a structural relaxation domain like iron-based amorphous alloys which involve both thermal and magnetic relaxation. The features of this relaxation domain depend on annealing and cold-working treatments. Upon longitudinal magnetic field, the alloy exhibits discrete saturated states related to Fe clusters which are linked to the thermal and the mechanical history of the amorphous structure. In a "field annealing" and an as-cast conditions some of these discrete saturated states appear respectively at 0.4, 50 and 200Oe.
© EDP Sciences 1996