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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.:

US 9511436 B1

PDFFull Text
Date of Patent:
Dec. 06, 2016

Filed:

Nov. 08, 2013

Composite composition for turbine blade tips, related articles, and methods

Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Sundeep Kumar, Bangalore, IN;

Anand Krishnamurthy, Bangalore, IN;

Kivilcim Onal, Greer, SC (US);

Pazhayannur Ramanathan Subramanian, Niskayuna, NY (US);

Dennis Michael Gray, Delanson, NY (US);

Padmaja Parakala, Sydney, AU;

Assignee:

General Electric Company, Niskayuna, NY (US);

Attorney:

Francis T. Coppa

Primary Examiner:

Jonathan Langman

Int. Cl.
CPC ...
B23K 1/00 (2006.01); C04B 35/117 (2006.01); C04B 35/46 (2006.01); C04B 35/488 (2006.01); C04B 35/495 (2006.01); C04B 35/50 (2006.01); C04B 35/505 (2006.01); B23K 1/012 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01);
U.S. Cl.
CPC ...
B23K 1/0018 (2013.01); B23K 1/012 (2013.01); B32B 9/005 (2013.01); B32B 9/041 (2013.01); C04B 35/117 (2013.01); C04B 35/46 (2013.01); C04B 35/488 (2013.01); C04B 35/495 (2013.01); C04B 35/50 (2013.01); C04B 35/505 (2013.01); B23K 2203/08 (2013.01); B32B 2307/554 (2013.01); B32B 2307/714 (2013.01); B32B 2311/22 (2013.01); B32B 2603/00 (2013.01); C04B 2235/40 (2013.01); C04B 2235/402 (2013.01); C04B 2235/404 (2013.01); C04B 2235/405 (2013.01); C04B 2235/428 (2013.01); C04B 2235/781 (2013.01); C04B 2235/783 (2013.01); Y10T 428/12493 (2015.01); Y10T 428/12944 (2015.01); Y10T 428/26 (2015.01); Y10T 428/31678 (2015.04);
Abstract

A composite composition that includes an MCrAlX alloy and a nano-oxide ceramic is disclosed. In the formula, M includes nickel, cobalt, iron, or a combination thereof, and X includes yttrium, hafnium, or a combination thereof, from about 0.001 percent to about 2 percent by weight of the alloy. The amount of the nano-oxide ceramic is greater than about 40 percent, by volume of the composition. A protective covering that includes the composite composition is also disclosed. The protective covering can be attached to a tip portion of a blade with a braze material. A method for joining a protective covering to a tip portion of a blade, and a method for repair of a blade, are also provided.

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