Influence of annealing treatments on permeability aftereffects in some iron- or cobalt-based amorphous alloys

Exciting field dependence of permeability and disaccomodation and evolution of structural relaxation rate have been studied for (CoFe) ₇₀(MoSiB) ₃₀ and Fe ₇₈Si ₉B ₁₃ alloys. The change, with different annealing conditions, of the magnetic properties are discussed in terms of two processes: the irreversible stress relaxation and the reversible changes in short-range order associated with the local induced anisotropy.