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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Rigney; Joseph D.
Address:
Milford, OH
No. of patents:
29
Patents:












Patent Number Title Of Patent Date Issued
7371426 Method for repairing components using environmental bond coatings and resultant repaired compone May 13, 2008
According to an embodiment of the invention, a repaired component is disclosed. The repaired component comprises an engine run component having a base metal substrate, a portion of the base metal substrate between about 1-3 mils in thickness and an overlying bond coat having been rem
7094444 Method for repairing coated components using NiAl bond coats August 22, 2006
According to an embodiment of the invention, a method for repairing a coated high pressure turbine blade, which has been exposed to engine operation, to restore coated airfoil contour dimensions of the blade, and improve upon the prior bond coat is disclosed. The method comprises pro
7078073 Method for repairing coated components July 18, 2006
According to an embodiment of the invention, a method for repairing a coated high pressure turbine blade, which has been exposed to engine operation, to restore coated airfoil contour dimensions of the blade, is disclosed. The method comprises providing an engine run high pressure tu
7070866 Nickel aluminide coating with improved oxide stability July 4, 2006
In one embodiment of the invention, a NiAl overlay bond coating composition comprises a NiAl alloy. The alloy comprises Zr and at least one modifying element in an amount effective to form a stabilized oxide structure comprising stabilized zirconia including a substantially tetragona
6632480 Nickel-base superalloy article with rhenium-containing protective layer, and its preparation October 14, 2003
A nickel-base superalloy article has a surface protective layer comprising nickel, from about 20 to about 35 weight percent aluminum, and from about 0.5 to about 10 weight percent rhenium. The protective layer, which is preferably an overlay coating of the beta (.beta.) phase NiAl form,
6620465 Physical properties of thermal barrier coatings using electron beam-physical vapor deposition September 16, 2003
An improved method for applying a ceramic material, such as a thermal barrier coating to an article. A method for applying a ceramic material as a coating to a substrate article in which the thermal conductivity of the ceramic material is reduced or lowered is provided. The thermal c
6616969 Apparatus and method for selectively coating internal and external surfaces of an airfoil September 9, 2003
A gas turbine airfoil has an external surface and an internal passage therethrough. The internal passage is selectively coated by providing a source of a flowable precursor coating material in contact with the internal passage of the airfoil, and providing a coating prevention struct
6582772 Method for preparing an article with a hafnium-silicon-modified platinum-aluminide bond or envir June 24, 2003
An article such as a gas turbine blade or vane has a superalloy substrate, and a coating system deposited on the substrate. The coating system includes a protective layer overlying the substrate, and, optionally, a ceramic thermal barrier coating layer overlying the bond coat. The pr
6521294 Aluminiding of a metallic surface using an aluminum-modified maskant, and aluminum-modified mask February 18, 2003
A metallic substrate has a substrate surface having a substrate surface of nickel, a substrate aluminum content, and other alloying elements. A maskant is applied overlying the substrate surface to produce a masked substrate surface having an exposed region and a protected region. The
6514629 Article with hafnium-silicon-modified platinum-aluminum bond or environmental coating February 4, 2003
An article such as a gas turbine blade or vane has a superalloy substrate, and a coating system deposited on the substrate. The coating system includes a protective layer overlying the substrate, and, optionally, a ceramic thermal barrier coating layer overlying the bond coat. The pr
6468040 Environmentally resistant squealer tips and method for making October 22, 2002
A cast turbine airfoil to which a squealer tip is added. The turbine airfoil is cast slightly undersize. The squealer tip is comprised of an alloy that is different from the cast alloy of the airfoil, the oxidation resistance and strength of the squealer tip alloy being greater than the
6461746 Nickel-base superalloy article with rhenium-containing protective layer, and its preparation October 8, 2002
A nickel-base superalloy article has a surface protective layer comprising nickel, from about 20 to about 35 weight percent aluminum, and from about 0.5 to about 10 weight percent rhenium. The protective layer, which is preferably an overlay coating of the beta (.beta.) phase NiAl form,
6455167 Coating system utilizing an oxide diffusion barrier for improved performance and repair capabili September 24, 2002
A coating is described for use on a superalloy substrate comprising a diffusion barrier as an intermediate layer overlying the substrate and underlying a protective coating having a high aluminum content. The diffusion barrier layer is characterized by having low interdiffusivity for
6447854 Method of forming a thermal barrier coating system September 10, 2002
A method for producing a thermal barrier coating system on an article that will be subjected to a hostile environment. The thermal barrier coating system is composed of a metallic bond coat and a ceramic thermal barrier coating having a columnar grain structure. The method generally enta
6444060 Enhancement of an unused protective coating September 3, 2002
A method is provided for enhancing to a selected coating range a substantially unused protective coating, including aluminum, on an article surface, for example an airfoil surface of a gas turbine engine turbine blade. The protective coating is enhanced without removing such unused c
6444053 Preparation of a nickle-based superalloy article containing a reactive element and having a deca September 3, 2002
A nickel-base superalloy article substrate has more nickel than any other element, a reactive element that is hafnium, zirconium, yttrium, lanthanum, or cerium, or combinations thereof, and a nominal bulk composition of carbon. A protective layer is deposited overlying the surface of
6436473 Graded reactive element containing aluminide coatings for improved high temperature performance August 20, 2002
A diffusion aluminide coating having a graded structure is applied over a nickel base superalloy substrate. The coating has an inner region of a diffusion aluminide adjacent to the substrate rich in a reactive element, typically Hf, Si or combinations of the two. The near surface region
6391475 Modified aluminum-containing protective coating and its preparation May 21, 2002
A nickel-base superalloy substrate has an overlying protective coating including a modified aluminum-containing protective layer. The modified aluminum-containing protective layer is formed of nickel, aluminum, calcium in an amount of from about 50 to about 300 parts per million by w
6383306 Preparation of a nickel-base superalloy article having a decarburized coating containing aluminu May 7, 2002
A nickel-base superalloy article substrate has more nickel than any other element and a nominal bulk composition of carbon. A protective layer is deposited overlying the surface of the article substrate. The protective layer includes aluminum and one or more of the reactive elements hafn
6372321 Coated article with internal stabilizing portion and method for making April 16, 2002
A coated article is provided with a coating stabilizing portion in a coating combination on a substrate of the article. The coating combination includes a coating diffusion portion on the substrate and an outer coating portion outwardly from the coating diffusion portion. The coating
6344282 Graded reactive element containing aluminide coatings for improved high temperature performance February 5, 2002
A diffusion aluminide coating having a graded structure is applied over a nickel base superalloy substrate. The coating has an inner region of a diffusion aluminide adjacent to the substrate rich in a reactive element, typically Hf, Si or combinations of the two. The near surface region
6342278 Method for forming a thermal barrier coating by electron beam physical vapor deposition January 29, 2002
A method of depositing a ceramic thermal barrier coating on an article that will be subjected to a hostile environment, such as turbine, combustor and augmentor components of a gas turbine engine. The thermal barrier coating is deposited by electron beam physical vapor deposition (EBPVD)
6332926 Apparatus and method for selectively coating internal and external surfaces of an airfoil December 25, 2001
A gas turbine airfoil has an external surface and an internal passage therethrough. The internal passage is selectively coated by providing a source of a flowable precursor coating material in contact with the internal passage of the airfoil, and providing a coating prevention struct
6296447 Gas turbine component having location-dependent protective coatings thereon October 2, 2001
A gas turbine component includes a platform having a first coating on at least a portion thereof, where the first coating is a diffusion aluminide coating. An airfoil extends from the platform and has an external surface and an internal surface defining cooling passages therethrough. The
6283714 Protection of internal and external surfaces of gas turbine airfoils September 4, 2001
A gas turbine airfoil includes an internal cooling passage defined by an internal airfoil surface, and an external airfoil surface. The gas turbine airfoil is protected on both the internal airfoil surface and the external airfoil surface. The internal airfoil surface is protected by for
6274193 Repair of a discrete selective surface of an article August 14, 2001
A method for restoring a protective coating including a metallic environmental resistant coating of a coating total thickness within a coating design thickness range on a metal substrate of an article includes the application of a replacement material to at least one discrete local s
6203847 Coating of a discrete selective surface of an article March 20, 2001
A method for restoring or enhancing an environmental resistant coating of a coating total thickness within a coating design thickness range on a metal substrate of an article includes the application of a restoring or enhancing metal to at least one discrete local surface area. Then at l
6153313 Nickel aluminide coating and coating systems formed therewith November 28, 2000
A coating system (20) for articles used in hostile thermal environments, such as turbine, combustor and augmentor components (10) of a gas turbine engine. The coating system (20) of this invention employs a NiAl-based intermetallic coating (24) containing 30 to 60 atomic percent aluminum
6042880 Renewing a thermal barrier coating system March 28, 2000
A thermal barrier coating (TBC) system, comprising a metallic bond coat on an article surface and an outer ceramic TBC is repaired by renewing without removing the bond coat. The outer ceramic TBC is removed to expose a bond coat substrate. At least one discrete local surface area of the










 
 
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