High strength L1 2 aluminum alloys

Details High strength L1 2 aluminum alloys High strength L1 2 aluminum alloys

2008-04-18

2010-10-12

Ward, Jessica L (Department: 1793)

Metal treatment

Stock

Aluminum base

C148S417000, C148S418000, C420S533000

Reexamination Certificate

active

07811395

ABSTRACT:
High strength heat treatable aluminum alloys that can be used at temperatures from about −420° F. (−251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L12intermetallic compound Al3X. These alloys comprise aluminum, copper, magnesium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium.

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European Search Report—EP 09 25 1016—Dated Jun. 10, 2009—9 Pages.

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