| 摘要 |
PURPOSE:To obtain a high magnetic permeability alloy for a magnetic shield with imoroved corrosion resistance and hot workability by substituting Si and Mg for part of Fe in an Ni-Cu-Fe alloy. CONSTITUTION:This high magnetic permeability alloy consists of, by weight, 57-74% Ni, 12% Cu, 0.3-3.5% Si, 0.001-0.02% Mg and the balance Fe. Si is added to reduce the magnetostriction and magnetic anisotropy of the alloy as well as to improve the corrosion resistance. Mg is added to improve the hot workability of the alloy. By the alloy composition the high magnetic permeability alloy with superior initial permeability and maximum permeability as well as improved hot workability and corrosion resistance is obtd. |
