Method for repairing a coated article

Details Method for repairing a coated article Method for repairing a coated article

B - Operations, Transporting

05

D

B05D 7/14 (2006.01) B05D 3/04 (2006.01) B23P 6/00 (2006.01) C23C 10/02 (2006.01) C23C 28/00 (2006.01) C23F 1/12 (2006.01) C23F 1/44 (2006.01)

Patent

CA 2357866

A method is provided for repairing an article (10) having a fissure (16) in a metallic overlay environmental resistant coating (14) that includes the element Al, for example an overlay coating (14) of the MCrAIY type. The method depletes more than about 90 wt. % of the Al from an exposed coating surface (18) within the fissure and from a coating outer surface (20) adjacent the fissure (16), to a depth (22) of at least about 7 mils, without removal of the coating (14) and while substantially maintaining the coating thickness. Thereafter, the fissure (16) is repaired.

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