Treatment of superalloy surfaces

Details Treatment of superalloy surfaces Treatment of superalloy surfaces

1987-11-18

1989-03-07

Brody, Christopher W.

Metal treatment

Compositions

Heat treating

148 203, C21D 168

Patent

active

048103128

ABSTRACT:
A superalloy which is to be solution heat treated is first coated with a vapor barrier, so as to reduce the loss of surface material during the heat treatment step. The advantage gained is the maintenance of an etchable surface for grain boundary inspection purposes.

REFERENCES:
patent: 2132557 (1938-10-01), Bobrov
patent: 2142869 (1939-01-01), Fraser
patent: 2742382 (1956-04-01), Chambers
patent: 4234397 (1980-11-01), Torrey

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