Fatigue crack resistant nickel base superalloy

Details Fatigue crack resistant nickel base superalloy Fatigue crack resistant nickel base superalloy

1988-07-05

1992-02-11

Dean, R.

Metal treatment

Stock

Age or precipitation hardened or strengthened

148 127N, C22C 1905

Patent

active

050873059

ABSTRACT:
An alloy is disclosed which has been found to lend itself particularly well to thermomechanical processing. The alloy is strengthened by precipitates similar to those of Inconel 718 but the alloy matrix of the composition is a nickel-chromium-cobalt matrix rather than the nickel-chromium-iron matrix of the Inconel alloy. Also the alloy has grains of average diameter of 35 .mu.m or larger. The fatigue resistance, tensile strength and the rupture strength of the alloy is improved to a remarkable degree as a result of the thermomechanical processing. The thermomechanical processing is carried out below the recrystallization temperature to prevent nucleation of fine grains. The residual strains from the thermomechanical processing or cold working provides the remarkably favorable combination of alloy properties which are found.

REFERENCES:
patent: 3046108 (1962-07-01), Eiselstein
patent: 3372068 (1968-05-01), White et al.
patent: 4140555 (1979-02-01), Garcia et al.

Affiliated with

Also associated with

Rating

Fatigue crack resistant nickel base superalloy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fatigue crack resistant nickel base superalloy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fatigue crack resistant nickel base superalloy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-779909