Method of producing columnar crystal superalloy material with co

Details Method of producing columnar crystal superalloy material with co Method of producing columnar crystal superalloy material with co

1981-11-27

1985-05-21

Dean, R.

Metal treatment

Compositions

Heat treating

148 115P, 148404, C22F 110, C22C 1903

Patent

active

045184429

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.

REFERENCES:
patent: 3346427 (1967-10-01), Baldwin, Jr. et al.
patent: 3787205 (1974-01-01), Church
patent: 3902900 (1975-09-01), Restall
patent: 3920489 (1975-11-01), Buchanan
patent: 3982973 (1976-09-01), Peters et al.
patent: 3992161 (1976-11-01), Cairns et al.
patent: 4002503 (1977-01-01), Bourne et al.

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