| 摘要 |
PURPOSE:To obtain the titled magnetic material particularly showing higher magnetic permeability and also excellent in corrosion resistance and hot workability, by providing a composition consisting of respectively prescribed amounts of Ni, Cr, one or more magnetic permeability-improving components among Si, Al, V, etc., and B and the balance essentially Fe. CONSTITUTION:An Fe-Ni-Cr corrosion-resisting magnetic material having a composition consisting of, by weight, 35-65% Ni, 1-15% Cr, >0.5-5% of magnetic permeability-improving components composed of one or more elements among Si, Al, V, Nb, Ta, Ti, and W, 0.001-0.1% B as a hot-workability component, and the balance essentially Fe is provided. The above magnetic material is manufactured by subjecting an ingot or slab of an alloy stock with the above composition to hot rolling, annealing, pickling, and cold rolling, and subsequently, by subjecting the rolled stock to heat treatment in a nonoxidizing atmosphere or in vacuum at 900-1,300 deg.C and then to deboronizing so as to counteract the deterioration in magnetic properties due to B. In this way, the desired Fe-Ni- Cr corrosion-resisting magnetic material can be obtained. |
