Iron-chromium-aluminum alloy

Details Iron-chromium-aluminum alloy Iron-chromium-aluminum alloy

C - Chemistry, Metallurgy

22

C

C22C 38/18 (2006.01) C21D 8/02 (2006.01)

Patent

CA 2529720

The invention relates to an iron-chromium-aluminum alloy having a good oxidation resistance, comprising (in % by mass) 2.5 to 5.0 % Al, 10 to 25 % Cr, 0.05 0.8 % Si, and additions of > 0.01 to 0.1 % Y and/or > 0.01 to 0.1 % Hf and/or > 0.01 to 0.2 % Zr and/or > 0.01 to 0.2 % Cer mixed metal (Ce, La, Nd) as well as production-associated impurities.

L'invention concerne un alliage fer-chrome-aluminium présentant une bonne résistance à l'oxydation, cet alliage comprenant (en % en masse) 2,5 à 5,0 % d'aluminium, 10 à 25 % de chrome et 0,05 à 0,8 % de silicium et des additions de plus de 0,01 à 0,1 % d'yttrium et/ou de plus de 0,01 à 0,1 % d'hafnium et/ou de plus de 0,01 à 0,2 % de zirconium et/ou de plus de 0,01 à 0,2 % d'un métal mixte à base de cérium (cérium, lanthane, néodyme), ainsi que des impuretés liées à la production.

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