Patent ID: 8002912
Filing Date: 2011-08-23
Classification: C22C,C22F

Abstract:
1. An aluminum alloy having high strength, ductility, corrosion resistance and fracture toughness, comprising: at least one of about 4 to about 25 weight percent of nickel, about 1.5 to about 20 weight percent of iron, and about 1 to about 20 weight percent chromium; at least one first element selected from the group consisting of: about 0.1 to about 4 weight percent scandium, about 0.1 to about 15 weight percent thulium, about 0.1 to about 25 weight percent ytterbium, and about 0.1 to about 25 weight percent lutetium; at least one second element selected from the group consisting of: about 2 to about 30 weight percent yttrium, about 0.5 to about 5 weight percent zirconium, about 0.5 to about 10 weight percent titanium, about 0.5 to about 10 weight percent hafnium, and about 0.5 to about 5 weight percent niobium; and the balance substantially aluminum, whereby the alloy comprises: an aluminum solid solution matrix and a plurality of dispersoids, the dispersoids comprising at least one of Al each Al wherein the alloy is formed by a rapid solidification process, wherein the rapid solidification process has a cooling rate greater that about 10