拡散アルミニドコーティングからの高温腐蝕生成物の除去方法

Title:

拡散アルミニドコーティングからの高温腐蝕生成物の除去方法

Document Type and Number:

Japanese Patent JP4762393

Kind Code:

B2

Abstract:

A method of removing hot corrosion products from the surface of a component exposed to corrosive conditions at elevated temperatures, as is the case with turbine, combustor or augmentor components of gas turbine engines. The method is particularly suited for the removal of hot corrosion products from components protected with a diffusion aluminide coating, either as an environmental coating or as a bond coat for a thermal barrier coating (TBC). The processing steps of the method include immersing the component in a heated liquid solution containing acetic acid, and then agitating the surfaces of the component while the component remains immersed in the solution. In this manner, hot corrosion products on the surfaces of the component are removed without damaging or removing the diffusion aluminide coating. As a result, regions of the component from which the hot corrosion products were removed can then be repaired by a suitable aluminizing process.

Inventors:

Mark Alan Rosenzweg
Jeffrey Allen Connor
Joseph Howell Bowden, Jr.

Application Number:

JP36210099A

Publication Date:

August 31, 2011

Filing Date:

December 21, 1999

Export Citation:

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