Coated article and method for repairing a coated surface

Metal working – Method of mechanical manufacture – Repairing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C029S402110, C029S402180, C029S458000, C029S527200

Reexamination Certificate

active

07093335

ABSTRACT:
A method is provided for repairing a surface portion of an article including a metallic environmental resistant coating on a substrate. The coating includes a coating outer portion bonded with the substrate through a diffusion zone that includes at least one feature, for example Al and/or an intermetallic phase, in an amount detrimental to application of a metallic replacement coating and/or repair of the article. The method comprises removing the coating outer portion to expose a surface of the diffusion zone. The substrate and the diffusion zone are heated at a temperature and for a time sufficient to diffuse and/or dissolve at least a portion of the at least one feature in the exposed surface and in a portion of the diffusion zone beneath the exposed surface to a level below the detrimental amount. This provides a replacement surface portion integral with diffusion zone. Then a metallic replacement coating outer portion is applied to the replacement surface portion. Provided is a coated article comprising a substrate and a metallic environmental resistant coating bonded with the substrate. The coating comprises an inner modified portion of the substrate integral with the substrate, an outer diffusion zone integral with the inner portion, and a metallic environmental resistant coating outer portion integral with the outer diffusion zone. In some forms, the coated article includes a thermal barrier coating over the metallic coating outer portion.

REFERENCES:
patent: 3544348 (1970-12-01), Boone et al.
patent: 4032359 (1977-06-01), Fisher et al.
patent: 4282041 (1981-08-01), Cork
patent: 4338272 (1982-07-01), Pelton et al.
patent: 5373986 (1994-12-01), Rafferty et al.
patent: 5658614 (1997-08-01), Basta et al.
patent: 5702288 (1997-12-01), Liebke et al.
patent: 5723078 (1998-03-01), Nagaraj et al.
patent: 5728227 (1998-03-01), Reverman
patent: 5856027 (1999-01-01), Murphy
patent: 5898994 (1999-05-01), Miller et al.
patent: 6001492 (1999-12-01), Jackson et al.
patent: 6195864 (2001-03-01), Chesnes
patent: 6305077 (2001-10-01), Conner et al.
patent: 6489584 (2002-12-01), Kelly

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coated article and method for repairing a coated surface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coated article and method for repairing a coated surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coated article and method for repairing a coated surface will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3685224

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.