Hot isostatic pressing of single crystal superalloy articles

Details Hot isostatic pressing of single crystal superalloy articles Hot isostatic pressing of single crystal superalloy articles

1987-09-16

1991-01-01

Lechert, Jr., Stephen J.

Metal treatment

Compositions

Heat treating

148 3, 148410, 148428, 419 42, 419 49, 419 68, 420447, 420590, C21D 100

Patent

active

049815288

ABSTRACT:
A method for the densification of a shaped nickel base single crystal alloy article utilizing a pre-HIP, an improved hot isostatic pressing (HIP) step, and post-HIP solution heat treatment to enhance removal of casting porosity in a finished article.

REFERENCES:
patent: 3567526 (1971-03-01), Gell et al.
patent: 4222794 (1980-09-01), Schweizer et al.
patent: 4371404 (1983-02-01), Duhl et al.
patent: 4677035 (1987-06-01), Fiedler et al.
patent: 4719080 (1988-01-01), Duhl et al.
Evans, D. J., "Powder Metallurgy Processing of High Strength Turbine Disk Alloys", American Society of Mechanical Engineers, Mar. 1976, Pub. 76-GT-96.
Van Drunen, G. et al., "Hot Isostatic Processing of IN-738 Turbine Blades", Westinghouse Canada Limited 13-1/11.

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