High gamma prime superalloys by powder metallurgy

Details High gamma prime superalloys by powder metallurgy High gamma prime superalloys by powder metallurgy

1978-09-05

1980-10-07

Dean, R.

Metal treatment

Compositions

Heat treating

75 05C, 75171, 148 115N, 148 115P, 148 127N, 148 325, C22F 110

Patent

active

042266440

ABSTRACT:
A series of superalloy compositions are described, which when processed according to a described processing sequence, produce homogeneous superalloy articles which contain an exceptionally high amount of the gamma prime phase. These alloys contain large amounts of aluminum and chromium and hence are quite oxidation resistant. The processing sequence includes rapid solidification to suppress the formation of the low melting eutectic phases which would otherwise occur.

REFERENCES:
patent: 3832167 (1974-08-01), Shaw et al.

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