Novel fe-al alloy and method for producing same

C - Chemistry – Metallurgy – 21 – D

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C21D 9/46 (2006.01) C22C 38/00 (2006.01) C22C 38/06 (2006.01)

Patent

CA 2596856

Disclosed is an Fe-Al alloy having an Al content of not more than 12% by weight which is excellent in characteristics such as workability, insulating properties, magnetic permeability, vibration damping properties, high strength and the like. The Fe-Al alloy is produced by the following steps: a step (i) for metal forming an alloy composed of 2-12% by weight of Al and the balance of Fe and unavoidable impurities; a step (ii) for cold rolling the thus-formed alloy; and a step (iii) for annealing the cold-rolled alloy.

La présente invention décrit un alliage de Fe-Al ayant une teneur en Al n~étant pas supérieure à 12 % en poids qui présente d~excellentes caractéristiques telles que l~aptitude à l~usinage, les propriétés isolantes, la perméabilité magnétique, des propriétés d~amortissement de vibration, la résistance élevée et analogue. L~alliage de Fe-Al est produit par les étapes suivantes : une étape (i) de formation métallique d~un alliage composé de 2 à 12 % en poids d~Al et le reste de Fe et d~impuretés inévitables ; une étape (ii) de laminage à froid de l~alliage ainsi formé ; et une étape (iii) de recuit de l~alliage laminé à froid.

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