Cyclic oxidation resistant transverse ductile fiber reinforced eutectic nickel-base superalloys
AssigneeGeneral Electric Company
InventorMichael F. Henry
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Abstract
A unidirectionally solidified anisotropic metallic composite body exhibiting transverse ductility, cyclic oxidation resistance, hot corrosion resistance and high temperature strength properties comprising a eutectic nickel-base superalloy containing about, on a weight basis, 2-9% Re, less than 0.8% Ti, at least 2% Mo, and less than 1% V. Embedded in the matrix is an aligned carbide reinforcing fibrous phase, preferably one selected from carbides, primarily of Ta.
Claims10
An article of manufacture having transverse ductility, cyclic oxidation resistance, hot corrosion resistance, and high temperature strength properties comprising a unidirectionally solidified anisotropic metallic composite body comprising:
- a matrix of a Ni-base superalloy consisting essentially of about, on a weight basis, 2-9% Re, less than 0.8% Ti, at least 3.01% Mo, less than 1% V, along with elements selected from the group consisting of Cr, Al, Ta, C, Co, W, Cb, and
- an aligned eutectic carbide reinforcing fibrous phase.
An alloy capable of developing in a unidirectionally solidified anisotropic article having transverse ductility, cyclic oxidation resistance, hot corrosion resistance, and high temperature strength properties, the alloy consisting essentially of about, on a weight basis, 2-9% Re, less than 0.8% Ti, 0-10% Cr, 0-10% Al, 3-15% Ta, 0.1-1% C, 0-10% Co, 0-10% W, 0-1.0% V, 3.01-10% Mo, 0-3% Cb, the balance being essentially Ni and incidental impurities.
Dependencies are inferred from the claim text.