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. 19, 2015
Filed:
Jun. 09, 2011
Akane Suzuki, Clifton Park, NY (US);
Andrew John Elliott, Westminster, SC (US);
Michael Francis Xavier Gigliotti, Jr., Glenville, NY (US);
Kathleen Blanche Morey, Scotia, NY (US);
Jon Conrad Schaeffer, Simpsonville, SC (US);
Pazhayannur Subramanian, Niskayuna, NY (US);
Akane Suzuki, Clifton Park, NY (US);
Andrew John Elliott, Westminster, SC (US);
Michael Francis Xavier Gigliotti, Jr., Glenville, NY (US);
Kathleen Blanche Morey, Scotia, NY (US);
Jon Conrad Schaeffer, Simpsonville, SC (US);
Pazhayannur Subramanian, Niskayuna, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: greater than about 4 % of Al, about 10 to about 20 % of W, about 10 to about 40 % Ni, about 5 to 20 % Cr and the balance Co and incidental impurities. The alloy has a microstructure that is substantially free of a CoAl phase having a B2 crystal structure and configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment. A method of making an article of the alloy includes: selecting the alloy; forming an article from the alloy; solution-treating the alloy; and aging the alloy to form an alloy microstructure that is substantially free of a CoAl phase having a B2 crystal structure, wherein the alloy is configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.