L1 2 strengthened amorphous aluminum alloys

Details L1 2 strengthened amorphous aluminum alloys L1 2 strengthened amorphous aluminum alloys

2011-01-25

2011-01-25

Wyszomierski, George (Department: 1733)

Metal treatment

Stock

Amorphous, i.e., glassy

C148S437000, C420S550000, C420S551000

Reexamination Certificate

active

07875131

ABSTRACT:
An improved amorphous aluminum alloy having high strength, ductility, corrosion resistance and fracture toughness is disclosed. The alloy has an amorphous phase and a coherent L12phase. The alloy has nickel, cerium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, niobium and iron. The volume fraction of the amorphous phase ranges from about 50 percent to about 95 percent and the volume fraction of the coherent L12phase ranges from about 5 percent to about 50 percent.

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