Title:
超合金基体上に拡散皮膜を再生する方法
Document Type and Number:
Japanese Patent JP4753483
Kind Code:
B2
Abstract:
A method for controlled removal of a portion of a diffusion coating from the outer surface of a nickel-containing superalloy article. A diffusion coating typically includes a diffusion layer (16) between an outer aluminide layer (14) and the nickel-containing substrate. The method includes contacting the coated superalloy article in a preselected chemical stripping solution for a preselected period of time sufficient to remove only the outer aluminide layer (14), without substantially affecting the diffusion layer (16) underlying the outer aluminide layer (14). After neutralizing the stripping solution, the article can be inspected and repaired as needed. The aluminide outer layer (14) can then be restored in a conventional manner.
Inventors:
Ken Nam Chen
See Tung Nguyam
See Tung Nguyam
Application Number:
JP2001083941A
Publication Date:
August 24, 2011
Filing Date:
March 23, 2001
Export Citation:
Assignee:
GE Aviation Services Operations (Private) Limited
International Classes:
C23F1/00; F01D5/28; C23C10/48; C23C16/02; C23F1/20; C23F1/28; C23F1/44; F02C7/00
Domestic Patent References:
| JP10072685A | ||||
| JP5042425A | ||||
| JP51041641A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa