Method of producing columnar crystal superalloy material...

Details Method of producing columnar crystal superalloy material... Method of producing columnar crystal superalloy material...

C - Chemistry, Metallurgy

22

F

148/34.7

C22F 1/10 (2006.01) C30B 1/00 (2006.01)

Patent

CA 1192477

Method of Producing Columnar Crystal Superalloy Material With Controlled Orientation Abstract A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.

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