Nickel-base powder metallurgy alloy

Details Nickel-base powder metallurgy alloy Nickel-base powder metallurgy alloy

C - Chemistry, Metallurgy

22

C

75/112

C22C 19/05 (2006.01) C22C 1/04 (2006.01)

Patent

CA 1332297

ABSTRACT OF THE DISCLOSURE An age-hardenable, corrosion-resistant, nickel-base fully dense article of compacted prealloyed particles. The article has a fine, uniformly distributed gamma-prime phase for strength and hardness. The alloy consists essentially of, in weight-percent, carbon .05 max, chromium 15 to 25, molybdenum 6.5 to 10, columbium 4 to 6.5, iron 9 max, aluminum .2 to .8, nitrogen .05 max, titanium .6 max, and balance nickel. The alloy article has an absence of interstitial phases at prior particle boundaries and may be age-hardened to a minimum room-temperature 0.2% offset yield strength of 120,000 psi.

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