The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1977
Filed:
Mar. 10, 1975
John R Rairden, III, Niskayuna, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A protective coating is provided for nickel-base and cobalt-base superalloys which is highly resistant to corrosion and oxidation in a fused Na.sub.2 SO.sub.4 environment at elevated temperatures. The superalloy body is coated by physical vapor deposition with a composition consisting essentially of 50-80% by weight of cobalt and 20-50% by weight of chromium. Optionally, the body may then be coated with an overlayer of aluminum and heat treated to cause interdiffusion of aluminum into the undercoating and thereby enhance the hot corrosion and oxidation resistance of the superalloy body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile