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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 10364490 B1

PDFFull Text
Date of Patent:
Jul. 30, 2019

Filed:

Nov. 19, 2014

Chromizing over cathodic arc coating

Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Frank J. Trzcinski, Ellington, CT (US);

Thomas Balzano, Manchester, CT (US);

Prentice M. Sinesi, Cromwell, CT (US);

Mark A. Livings, East Windsor, CT (US);

Michael N. Task, Manchester, CT (US);

Assignee:

UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:

Cantor Colburn LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C23C 14/58 (2006.01); C23C 10/10 (2006.01); C23C 10/20 (2006.01); C23C 28/02 (2006.01); C23C 14/16 (2006.01); C23C 10/38 (2006.01); F01D 5/28 (2006.01); C23C 14/34 (2006.01); C23C 30/00 (2006.01); C23C 14/14 (2006.01); C23C 10/32 (2006.01); B32B 15/04 (2006.01);
U.S. Cl.
CPC ...
C23C 14/5846 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); C23C 10/10 (2013.01); C23C 10/20 (2013.01); C23C 10/32 (2013.01); C23C 10/38 (2013.01); C23C 14/14 (2013.01); C23C 14/16 (2013.01); C23C 14/34 (2013.01); C23C 14/3464 (2013.01); C23C 14/5806 (2013.01); C23C 28/02 (2013.01); C23C 28/021 (2013.01); C23C 28/022 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); F01D 5/28 (2013.01); F01D 5/288 (2013.01); F05D 2220/32 (2013.01); F05D 2230/90 (2013.01); F05D 2300/177 (2013.01); F05D 2300/611 (2013.01); Y10T 428/12847 (2015.01); Y10T 428/12854 (2015.01); Y10T 428/12931 (2015.01); Y10T 428/12937 (2015.01); Y10T 428/12979 (2015.01);
Abstract

The present invention provides a Cr-rich cathodic arc coating, an article in turbine blade coated with the chromizing over cathodic arc coating, and a method to produce the coating thereof. The Cr-rich cathodic arc coating in the present invention comprises a cathodic arc coating and a diffusion coating deposited atop the cathodic arc coating to enforce hot corrosion resistance. The hardware coated with the chromizing over cathodic arc coating in the present invention is reinforced with superior-hot corrosion resistance. The present invention further provides a novel method for producing the chromizing over cathodic arc coating by re-sequencing coating deposition order. The method in the present invention is efficient and cost-reducing by eliminating some operations, e.g., DHT and peening, between the cathodic arc coating and the diffusion coating. The hot corrosion resistance in the present invention results from the high Cr content in the surface of the coating.

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