Metal treatment – Process of modifying or maintaining internal physical... – Producing or treating layered – bonded – welded – or...
Reexamination Certificate
2007-08-27
2010-10-12
Wyszomierski, George (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Producing or treating layered, bonded, welded, or...
C148S535000
Reexamination Certificate
active
07811396
ABSTRACT:
A method for repairing a nickel-base superalloy article, such as a gas turbine stationary flowpath shroud having flowpath cooling holes therein that has previously been in service, includes the steps of providing the nickel-base superalloy article that has previously been in service; and applying a restoration to a surface of the article. The restoration is applied by the steps of providing a restoration nickel-base alloy, wherein the restoration nickel-base alloy preferably has no more than about 15 weight percent chromium and no more than about 0.01 percent yttrium, thereafter applying a restoration coating of the restoration nickel-base alloy to the surface of the article by a hyper-velocity oxyfuel metal spray process or a low-pressure plasma spray process, and thereafter heating the article with the restoration coating applied to the surface thereof to a sufficiently high temperature to diffusion bond the restoration coating to the surface of the article. The article is then returned to service.
REFERENCES:
patent: 5240491 (1993-08-01), Budinger et al.
patent: 5561827 (1996-10-01), Reeves et al.
patent: 5732467 (1998-03-01), White et al.
patent: 5956845 (1999-09-01), Arnold
patent: 6233822 (2001-05-01), Grossklaus, Jr. et al.
patent: 6383658 (2002-05-01), Carlson et al.
patent: 6468367 (2002-10-01), Mukira et al.
patent: 2003/0088980 (2003-05-01), Arnold
patent: 2005/0036892 (2005-02-01), Bajan
patent: 0713957 (1996-05-01), None
patent: 1013788 (2000-06-01), None
patent: 1122329 (2001-08-01), None
patent: 1507018 (2005-02-01), None
Budinger David Edwin
Grossklaus, Jr. Warren Davis
Jackson Melvin Robert
Miller Joshua Leigh
Miller Matthew Nicklus
General Electric Company
McNees Wallace & Nurick LLC
Wyszomierski George
LandOfFree
Method for HVOF or LPPS restoration coating repair of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for HVOF or LPPS restoration coating repair of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for HVOF or LPPS restoration coating repair of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4239926