| 摘要 |
Soft magnetic alloy of the iron-nickel type, the chemical composition of which comprises, by weight: 40%<=Ni+Co<=65%; 0%<=Co<=7%; 2%<=Cr<=5%; 1%<=Ti<=3%; 0%<=Al<=0.5%; 0%<=Mn+Si<=2%; optionally, up to 3% Mo, 2% W, 2% V, 1.5% Nb, 1% Ta and 3% Cu, the sum of the Cr, Mo, W, V, Nb, Ta and Cu contents being less than 7% and the sum of the Mo, W, V, Nb, Ta and Cu contents being less than 4%; the balance being iron and impurities, such as carbon, sulfur and phosphorus, resulting from the smelting process, the chemical composition furthermore satisfying the relationships: Cr<5-0.015x(Ni+Co-52.5)2, if: Ni+Co<=52.5; Cr<5-0.040x(Ni+Co-52.5)2, if: Ni+Co>=52.5; the alloy having a saturation induction Bs of greater than 0.9 tesla, a coercive field of less than 10 A/m, an electrical resistivity p of greater than 60 muOMEGA.cm and a hardness of greater than 200 HV. Process for manufacturing the alloy and uses.
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