Stable heat treatable nickel superalloy single crystal articles

Details Stable heat treatable nickel superalloy single crystal articles Stable heat treatable nickel superalloy single crystal articles

1997-11-03

2000-04-25

Jenkins, Daniel J.

Alloys or metallic compositions

Nickel base

Chromium containing

420442, 420445, 420446, 420447, C22C 1905

Patent

active

060540966

ABSTRACT:
Improved compositions for fabricating nickel superalloy single crystal articles are described. The compositions are characterized by the substantial absence of carbon, boron, zirconium and vanadium and intentional additions of cobalt. The cobalt additions increase the stability of the compositions and provide enhanced heat treatability. Single crystal articles of these compositions have utility as gas turbine engine components.

REFERENCES:
patent: 3494709 (1970-02-01), Piearcey
patent: 4209348 (1980-06-01), Duhl et al.

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