Nickel-base superalloys

Details Nickel-base superalloys Nickel-base superalloys

1979-07-02

1981-09-08

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

148 325, C22C 1905

Patent

active

042882478

ABSTRACT:
A nickel-base superalloy containing 14 to 22% chromium, 5 to 25% cobalt, 1 to 5% tungsten, 0.5 to 3% tantalum, 2 to 5% titanium, 1 to 4.5% aluminum, the sum of the titanium plus aluminum being 4.5 to 9%, up to 2% niobium, about 0.35 to 1.2% boron, up to 3.5% molybdenum, up to 0.5% zirconium, up to 0.2% total of yttrium and lanthanum, up to 0.1% carbon, at least 0.05% of at least one element of the group of hafnium and vanadium with the maximum being about 2.2% hafnium and 2% vanadium, the balance of the alloy being essentially nickel.

REFERENCES:
patent: 4127410 (1978-11-01), Merrick et al.

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