Low density, high creep resistant single crystal superalloy...

Details Low density, high creep resistant single crystal superalloy... Low density, high creep resistant single crystal superalloy...

2007-08-28

2007-08-28

Sheehan, John P. (Department: 1742)

Metal treatment

Stock

Nickel base

C420S443000, C420S445000, C420S448000

Reexamination Certificate

active

10946286

ABSTRACT:
A nickel-base superalloy article for use in turbines has increased creep resistance and lower density. The superalloy article includes, as measured in % by weight, 6.0-12.0% Mo, 5.5-6.5% Al, 3.0-7.0% Ta, 0-15% Co, 2.0-6.0% Cr, 1.0-4.0% Re, 0-1.5% W, 0-1.5% Ru, 0-2.0%-Ti, 0-3.0% Nb, 0-0.2% Hf, 0-0.02% Y, 0.001-0.005% B, 0.01-0.04% C, and a remainder including nickel plus impurities.

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