Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys

Patent Application · Tue Aug 27 00:00:00 EDT 1991

OSTI ID:5548824

Darolia, R; Goldman, E H

This patent describes a coating composition for application to nickel-base supperalloy substrate. It comprises by weight, 1 to 10% cobalt, 6 to 12% chromium, 5 to 8% aluminum, 1 to 10% tantalum, 1 to 10% tungsten, 0 to 3% rhenium, 0 to 2% molybdenum, 0.1 to 2% hafnium, 0.005 to 0.1% boron, 0.005 to 0.25% carbon, 0.01 to 1.0% yttrium, the balance nickel and incidental impurities.

• Assignee: General Electric Co., Cincinnati, OH (USA)
• Application Number: PPN: US 7-393111
• OSTI ID: 5548824
• Resource Relation: Patent File Date: 4 Aug 1989
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NICKEL BASE ALLOYS
PROTECTIVE COATINGS
CHEMICAL COMPOSITION
ALUMINIUM
BORON
CARBON
CHROMIUM
HAFNIUM
HEAT RESISTING ALLOYS
MOLYBDENUM
RHENIUM
SILICON ADDITIONS
SUBSTRATES
TANTALUM
TUNGSTEN
YTTRIUM ADDITIONS
ALLOYS
COATINGS
ELEMENTS
HEAT RESISTANT MATERIALS
MATERIALS
METALS
NICKEL ALLOYS
NONMETALS
SEMIMETALS
SILICON ALLOYS
TRANSITION ELEMENTS
YTTRIUM ALLOYS
360104* - Metals & Alloys- Physical Properties
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies