Single crystal nickel-based superalloy

Details Single crystal nickel-based superalloy Single crystal nickel-based superalloy

1992-06-29

1994-11-22

Andrews, Melvyn J.

Alloys or metallic compositions

Nickel base

Chromium containing

420443, 148404, 148410, 415200, 416241R, C22C 1905

Patent

active

053666950

ABSTRACT:
This invention relates to a nickel-based superalloy comprising the following elements in percent by weight: from about 5.0 to about 7.0 percent rhenium, from about 1.8 to about 4.0 percent chromium, from about 1.5 to about 9.0 percent cobalt, from about 7.0 to about 10.0 percent tantalum, from about 3.5 to about 7.5 percent tungsten, from about 5.0 to about 7.0 percent aluminum, from about 0.1 to about 1.2 percent titanium, from about 0 to about 0.5 percent columbium, from about 0.25 to about 2.0 percent molybdenum, from about 0 to about 0.15 percent hafnium, and the balance nickel+incidental impurities, the superalloy having a phasial stability number N.sub.v3B less than about 2.10.

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