Iron-nickel-cobalt alloy

Details Iron-nickel-cobalt alloy Iron-nickel-cobalt alloy

C - Chemistry, Metallurgy

22

C

C22C 38/10 (2006.01) C22C 38/08 (2006.01)

Patent

CA 2637499

Use of an iron-nickel-cobalt alloy in CFC mould construction comprising (in % by mass) Ni from 30 to 35%, Co from 3 to 6%, Al from 0.001 to 0.1%, Mn from 0.005 to 0.5%, Si from 0.005 to 0.5%, C max. 0.1%, balance Fe and constituents resulting from production, with the alloy having a mean coefficient of thermal expansion in the temperature range from 20 to 200~C of < 2.0 ~ 10-6/K.

L'invention concerne l'utilisation d'un alliage fer-nickel-cobalt pour un élément de construction en CFK comprenant (en % en masse) de 30 à 35 % de Ni, de 3 à 6 % de Co, de 0,001 à 0,1 % de Al, de 0,005 à 0,5 % de Mn, de 0,005 à 0,5 % de Si, jusqu'à 0,1 % de C, le reste étant du fer et d'inévitables impuretés, ledit alliage présentant dans la zone de températures comprise entre 20 et 200 °C un coefficient d'expansion thermique moyen < 2,0 x 10-6/K.

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