Directionally strengthened copper alloy parts for a gas turbine

Details Directionally strengthened copper alloy parts for a gas turbine Directionally strengthened copper alloy parts for a gas turbine

1980-08-07

1983-02-08

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

75159, 75164, 148 325, 148160, C22F 108

Patent

active

043727891

ABSTRACT:
A gas turbine, copper-based alloy part having a crystalline structure in which grain boundaries are elongated in the direction of principal stress applied to the part when in turbine service exhibits especially enhanced strength and fatigue resistance in such direction. The part is prepared in a process in which it is first cast to shape in a mold and then directionally solidified by substantially limiting the heat flow from the part to a direction parallel to the principal stress direction.

REFERENCES:
patent: 3260505 (1966-07-01), Ver Snyder
patent: 3494709 (1970-02-01), Piearcey
patent: 3677835 (1972-07-01), Tien et al.

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