Title:
A method of removing coating, and a method of making a covering super alloy component be the same as that of a new article
Document Type and Number:
Japanese Patent JP6262941
Kind Code:
B2
Abstract:
A method (400) for controlled removal of a portion (52) of a diffusion coating from a coated superalloy component (10) and a method (500) for rejuvenating a coated superalloy component (10) are provided. The methods (400, 500) include providing (401, 501) the component (10) having an oxide layer (40), an additive layer (50) between the oxide layer (40) and a diffusion zone (60), the diffusion zone (60) being between the additive layer (50) and a superalloy substrate (70) of the superalloy component (10). The methods (400, 500) include selectively removing (403, 503) the oxide layer (40) and a portion (52) of the additive layer (50) by grit blasting, wherein removing creates an exposed portion (56). Rejuvenating (500) includes applying (505) an aluminide coating to the exposed portion (56) and heat treating (507) at a preselected elevated temperature to form a rejuvenated protective aluminide coating (90) on the superalloy component (10).
Inventors:
Reaming Tsang
David Clayton Van Nest, Third
Jere Allen Johnson
David Clayton Van Nest, Third
Jere Allen Johnson
Application Number:
JP2013094874A
Publication Date:
January 17, 2018
Filing Date:
April 30, 2013
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
B24C1/00; B24C11/00; C23C10/28
Domestic Patent References:
| JP2002038283A | ||||
| JP2004332113A | ||||
| JP2004323976A | ||||
| JP2010126812A | ||||
| JP2005061409A | ||||
| JP2001003184A |
Foreign References:
| US20080193657 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
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