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Ni-Fe合金添加Ta后,其性能有相当大的改善。一种含73.00%Ni、12.05%Fe和14.95%Ta的合金,从高于有序-无序转变的温度以800℃/小时的速度冷却,得到最高的起始磁导率为57,300而最大磁导率为428,000。其他特性如下:Br=3430高斯(B_m=5000高斯)、H_c=0.0052奥(B_m=5000高斯)、4πI_(1000)(H=1000奥)=7420高斯、λ(磁致伸缩)=0.52×10~(-6)(H=1000奥)、ρ=64.3(微欧姆-厘米,20℃)以及维氏硬度H_V=197。《日本金属学会志》,1972,V36.No1,63～65
After adding Ta to Ni-Fe alloy, its performance has been greatly improved. An alloy containing 73.00% Ni, 12.05% Fe and 14.95% Ta is cooled at a rate of 800 ° C / hr from a temperature above the order-disorder transition to give a maximum initial permeability of 57,300 and a maximum magnetic The conductivity is 428,000. Other characteristics are as follows: Br = 3430 Gauss, H_c = 0.0052 A (B_m = 5000 Gauss), 4πI_ (1000) (H = 1000 A) = 7420 Gauss, ~ (-6) (H = 1000 Å), ρ = 64.3 (μΩ-cm, 20 ° C) and Vickers hardness H_V = 197. “Japan Society of Metals”, 1972, V36.No1, 63 ~ 65