摘要
The magnetic properties of the new Fe-based microcrystalline alloys developed by the authors have been reported. In June, 1990, the magnetic properties of these alloys developed reached a new level. D. C. magnetic properties of the modified and no-field annealed Fe-Cu-Nb-Si-B alloy (alloy 1)reached the following levels: initial permeability μ_i=17×10~4, maximum permeability μ_m=63×10~4, coercivity H_c=0.48 A/m. Fe-Cu-Mo-Si-B alloy (alloy 2) reached the following levels of magnetic properties: μ_i=9.5×10~4, μ_m=50×10~4, H_c=0.