Method of producing Fe-Ni series alloys having improved effect f

Details Method of producing Fe-Ni series alloys having improved effect f Method of producing Fe-Ni series alloys having improved effect f

1989-09-29

1991-03-26

Dean, R.

Metal treatment

Compositions

Heat treating

148 115N, 148 12R, C22F 110

Patent

active

050026194

ABSTRACT:
An ingot of Fe-Ni series alloy comprising 30-80 wt % of NI or further 0.001-0.03 wt % and B and the balance of Fe is upset at a forging ratio of at least 1/1.2U, hot forged at a total sectional reduction ratio of at least 30% to form a slab, from which fine crystal grains are formed at final heat treating stage, whereby Fe-Ni series alloys for electronic and electromagnetic materials are economically produced without generating streaks at the etching.

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