Thermomechanical treatment for nickel base superalloys

Details Thermomechanical treatment for nickel base superalloys Thermomechanical treatment for nickel base superalloys

C - Chemistry, Metallurgy

22

F

75/40, 148/34.7

C22F 1/10 (2006.01)

Patent

CA 1073324

ABSTRACT A thermomechanical treatment for producing useful microstructures in the nickel base superalloys is described. The process is applied to material which has been placed in a condition of super-plasticity, and utilizes isothermal hot deformation under conditions which produce a uniform dislocation density and a resultant propensity for abnormal grain growth. The material is then recrystallized in a thermal gradient to produce a final structure consisting of elongated grains. -1-

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