Heat treated superalloy single crystal article and process

Details Heat treated superalloy single crystal article and process Heat treated superalloy single crystal article and process

1978-12-18

1980-06-24

Dean, R.

Metal treatment

Compositions

Heat treating

75171, 148 32, 148 325, 148162, C22F 110

Patent

active

042093481

ABSTRACT:
Nickel base superalloy single crystal articles formed of a particular compositon and heat treated are described as is the process employed. The resultant articles are substantially free from the grain boundary strengtheners such as carbon, boron, and zirconium and contain only a limited amount of cobalt. As a result of the alloy composition, the alloys have a high incipient melting temperature. The heat treatment process homogenizes the micro-structure, and refines the gamma prime morphology.

REFERENCES:
patent: 3494709 (1970-02-01), Plearcey

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