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:
Oct. 12, 2010
Filed:
Aug. 27, 2007
David Edwin Budinger, Loveland, OH (US);
Brent Ross Tholke, Cincinnati, OH (US);
Matthew Nicklus Miller, Maineville, OH (US);
Warren Davis Grossklaus, Jr., West Chester, OH (US);
Joshua Leigh Miller, West Chester, OH (US);
Melvin Robert Jackson, Niskayuna, NY (US);
David Edwin Budinger, Loveland, OH (US);
Brent Ross Tholke, Cincinnati, OH (US);
Matthew Nicklus Miller, Maineville, OH (US);
Warren Davis Grossklaus, Jr., West Chester, OH (US);
Joshua Leigh Miller, West Chester, OH (US);
Melvin Robert Jackson, Niskayuna, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for repairing a nickel-base superalloy article, such as a gas turbine stationary flowpath shroud having flowpath cooling holes therein that has previously been in service, includes the steps of providing the nickel-base superalloy article that has previously been in service; and applying a restoration to a surface of the article. The restoration is applied by the steps of providing a restoration nickel-base alloy, wherein the restoration nickel-base alloy preferably has no more than about 15 weight percent chromium and no more than about 0.01 percent yttrium, thereafter applying a restoration coating of the restoration nickel-base alloy to the surface of the article by a hyper-velocity oxyfuel metal spray process or a low-pressure plasma spray process, and thereafter heating the article with the restoration coating applied to the surface thereof to a sufficiently high temperature to diffusion bond the restoration coating to the surface of the article. The article is then returned to service.