FIELD: metallurgy.
SUBSTANCE: invention relates to amorphous soft magnetic alloys based on the Fe-Ni system, obtained in the form of a belt in the process of quenching the melt onto a rotating copper disk, and can be used in electrical devices, for example, in magnetic circuits and high-frequency transformers. Magnetically soft amorphous material based on the Fe-Ni system in the form of a belt contains, at.%: Fe 31.6-47.4, Ni 31.6-47.4, B 10-14, P 3-7, Si 2-4, C 0.5-1.5.
EFFECT: increasing saturation magnetization above 0.74 T and the magnetic permeability above 42,000 at a frequency of 1 kHz, as well as in reducing the coercive force below 1.13 A/m.
1 cl, 4 dwg, 1 tbl, 3 ex
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