Ni-Mn基多元合金の磁気的および電気的特性

抄録

The magnetic and electric properties of Ni-Mn base polynary alloys have been measured. The specimens investigated are Ni-Mn-Me-alloys with less than about 24%Mn, where Me represents V, Nb, Ta, Cr, Mo, W and/or Fe. The permeabilities depend remarkably on chemical composition and heat treatment. The alloy of 79.38%Ni, 8.51%Mn, 5.06%Fe, 3.02%Cr and 4.03%Mo, heated at 1150°C for 3 h and cooled from 650°C to room temperature, exhibits the maximum performance. The highest value of initial permeability is 121000, obtained by the cooling rate of 240°C/h, while the cooling rate of 100°C/h yields the highest value of maximum permeability 643000. In the latter case the coercive force is 1.3 mOe, the magnetic hysteresis loss 0.92 erg/cm³/cycle (for a maximum induction of 2000 G), the saturation induction 2510G and the electric resistivity 84.7 μΩ-cm at 20°C.