High strength, ductile, low density, aluminum alloys and...

Details High strength, ductile, low density, aluminum alloys and... High strength, ductile, low density, aluminum alloys and...

C - Chemistry, Metallurgy

22

F

148/55.6

C22F 1/04 (2006.01) C22C 21/00 (2006.01)

Patent

CA 1280342

ABSTRACT OF THE DISCLOSURE The present invention provides a process for making high strength, high ductility, low density aluminum-base alloys, consisting essentially of the formula AlbalZraLibXc, wherein X is at least one element selected from the group consisting of Cu, Mg, Si, Sc, Ti, U, Hf, Be, Cr, V, Mn, Fe, Co and Ni, "a" ranges from about 0.15-2 wt%, "b" ranges from about 2.5-5 wt%, "c" ranges from about 0-5 wt% and the balance is aluminum. The alloy is given multiple aging treatments after being solutionized. The microstructure of the alloy is characterized by the precipitation of a composite phase in the aluminum matrix thereof.

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