An al-zn-mg-cu-sc high strength alloy for aerospace and...

Details An al-zn-mg-cu-sc high strength alloy for aerospace and... An al-zn-mg-cu-sc high strength alloy for aerospace and...

C - Chemistry, Metallurgy

22

C

C22C 21/10 (2006.01)

Patent

CA 2609257

An aluminum casting alloy, comprises, in weight percent, about 4-9% Zn; about 1-4% Mg; about 1-2.5% Cu; less than about 0.1% Si; less than about 0.12% Fe; less than about 0.5% Mn; about 0.01-0.05% B; less than about 0.15% Ti; about 0.05-0.2% Zr; about 0.1-0.5% Sc; no more than about 0.05% each miscellaneous element or impurity; no more tha about 0.15% total miscellaneous elements or impurities.

La présente invention concerne un alliage de fonte d'aluminium dont la composition massique est d'environ 4-9 % Zn, environ 1-4 % Mg, environ 1-2,5 % Cu, moins d'environ 0,1 % Si, moins d'environ 0,12 % Fe, moins d'environ 0,5 % Mn, environ 0,01-0,05 % B, moins d'environ 0,15 % Ti, environ 0,05-0.2 % Zr, environ 0,1-0,5 % Sc, sans dépasser environ 0,05 % pour chaque élément divers ou impureté, pour un total des éléments divers et impuretés n'atteignant pas environ 0,15 %.

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