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United States Patent | 6,219,915 |
Conner ,   et al. | April 24, 2001 |
A gas turbine engine hot section component having a ceramic thermal barrier coating is repaired by removing the ceramic thermal barrier coating, removing oxidation products and corrosion products from the metallic bond coating beneath the ceramic thermal barrier coating, applying a noble metal to the component, diffusing the noble metal into the component substrate, and aluminiding the component to provide an outermost noble metal-Al layer.
Inventors: | Conner; Jeffrey A. (Hamilton, OH); Weimer; Michael J. (Loveland, OH) |
Assignee: | General Electric Company (Cincinnati, OH) |
Appl. No.: | 443118 |
Filed: | November 18, 1999 |
Intern'l Class: | B23P 006/00 |
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U.S. application No. 08/886,504, filed Jul. 1, 1997 by WD Grossklaus,Jr., etal Method for Repairing a Thermal Barrier Coating. U.S. application No. 09/219,153 filed Dec. 22, 1998 by MA Rosenzweig, etal Method of Removing Hot Corrosion Products from a Diffusion Aluminide Coating. U.S. application No. 09/219,162 filed Dec. 22, 1998 by JA Conner et al Coating of a Discrete Selective Surface of an Article. U.S. application No. 09/219,163 filed Dec. 22, 1998 by JD Rigney, etal. Renewing a Thermal Barrier Coating System. U.S. application No. 09/287,627 filed Apr. 7, 1999 by HJ Farr and JA Conner Method for Locally Removing Oxidation and Corrosion Product from the Surface of Turbine Engine Components. |