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US 6,387,193 B1Granted
Repair material, process of repairing using the repair material, and article repaired
AssigneeGeneral Electric Company
InventorsMelvin Robert Jackson, Aaron Todd Frost, Charles Gitahi Mukira, Ann Melinda Ritter, Paul Vincent Crimi, Raymond Alan White
Life of this patent
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Abstract
A composition comprises cobalt; chromium; carbon; boron; zirconium; aluminum; at least one refractory material; and nickel. The composition is used as a repair material for repairing superalloy articles in a repair process.
Claims27
A superalloy article comprising a repair material, the repair material comprising, in atomic percent:
- cobalt, in a range from about 10.0 to about 15.0;
- chromium, in a range from about 24.0 to about 30.0;
- carbon, in a range from about 0.2 to about 0.3;
- boron, in a range from about 0.02 to about 0.05;
- zirconium, in a range from about 0.02 to about 0.05;
- aluminum, in a range from about 0.4 to about 3.0;
- at least one refractory material selected from the group consisting of molybdenum, tantalum, tungsten, niobium, rhenium, and combinations thereof, in a range from about 0.75 to about 7.0;
- silicon, in a range from about 1.1 to about 2.0;
- about 1.25 atomic percent manganese;
- and
- nickel, as a balance of the composition.
8 more elements
A repair process for repairing a superalloy article, the repair process comprising:
- providing a repair material;
- and
- joining the repair material to the superalloy article, the repair material comprising in atomic percent:
- cobalt, in a range from about 10.0 to about 15.0;
- chromium, in a range from about 24.0 to about 30.0;
- carbon, in a range from about 0.2 to about 0.3;
- boron, in a range from about 0.02 to about 0.05;
- zirconium, in a range from about 0.02 to about 0.05;
- aluminum, in a range from about 0.4 to about 3.0;
- at least one refractory material selected from the group consisting of molybdenum, tantalum, tungsten, niobium, rhenium, and combinations thereof, in a range from about 0.75 to about 7.0;
- silicon, in a range from about 1.1 to about 2.0;
- about 1.25 atomic percent manganese;
- and
- nickel, as a balance of the composition.
11 more elements
Dependencies are inferred from the claim text.