Nickel base coating alloy

US4610736A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Charles A. Barrett · Fairview Park, US
• Carl E. Lowell · Lakewood, US

Key dates

• Filing date: Mar 23, 1983
• Grant date: Sep 9, 1986
• Expiry date: Mar 23, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C19/007
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Zirconium is added to a Ni-30 Al (Beta) intermetallic alloy in the range of 0.05 w/o to 0.25 w/o. This addition is made during melting or by using metal powders. The addition of zirconium improves the cyclic oxidation resistance of the alloy at temperatures above 1100.degree. C.