Patent application number | Description | Published |
20080264444 | Method for removing carbide-based coatings - The present invention is a method for processing a metal component comprising exposing a carbide-based coating to fluoride ions, thereby extracting a carbide material from the carbide-based coating to provide a residual coating on the metal component, and removing the residual coating from the metal component. | 10-30-2008 |
20080265005 | Brazing process incorporating graphitic preforms - A method for processing a metal component comprising inserting a graphitic preform into an aperture of the metal component, brazing the metal component, and removing at least a portion of the graphitic preform from the aperture with a thermal process in an oxygen-containing atmosphere. | 10-30-2008 |
20090035485 | Method for forming active-element aluminide diffusion coatings - A method for forming a coating on a substrate, the method comprising forming an active element coating over the substrate with a cathodic arc deposition process, and performing a diffusion coating process on at least the active element coating with an aluminum-based compound and a halide activator. | 02-05-2009 |
20090068446 | Layered structures with integral brazing materials - A layered structure comprising a base structure having a major surface, and a brazing layer secured to the major surface of the base structure, where the brazing layer is applied to the major surface prior to positioning the layered structure in contact with a turbine engine component. | 03-12-2009 |
20090134035 | Method for forming platinum aluminide diffusion coatings - A method for forming a platinum aluminide coating comprising forming a platinum-containing coating on the substrate, and performing a diffusion coating process with the use of an aluminum-based compound and a halide activator, each having a sulfur concentration of less than about 20 parts-per-million by weight. | 05-28-2009 |
20090136664 | Method for forming aluminide diffusion coatings - A method for forming an aluminide coating comprising diffusion coating a substrate with the use of an aluminum-based compound and a halide activator, each having a sulfur concentration of less than about 20 parts-per-million by weight. | 05-28-2009 |
20090175727 | Dimensional restoration of stationary shroud segments - A method for dimensionally restoring a stationary shroud segment, the method comprising removing at least a portion of a damaged flowpath of the stationary shroud segment to provide an exposed surface, casting a replacement flowpath, positioning the replacement flowpath on the exposed surface, and diffusion bonding the replacement flowpath to the stationary shroud segment. | 07-09-2009 |
20090274562 | Coated turbine-stage nozzle segments - A method for coating a nozzle segment, the method comprising separating an outer shroud and an inner platform of the nozzle segment along pathways that bisect a first stator vane and a second stator vane of the of the nozzle segment, coating the first stator vane and the second stator vane after separating the outer shroud and the inner platform, and rejoining the separated outer shroud and the separated inner platform after coating the first stator vane and the second stator vane. | 11-05-2009 |
20110180199 | Powder -metallurgy braze preform and method of use - A method of fabricating and using a braze preform, the method comprising cold pressing a powdered brazing material in a die, thereby forming a braze preform in the die. The braze preform can then be diffusion brazed to a damaged component to repair the component. | 07-28-2011 |
20120000967 | LAYERED STRUCTURES WITH INTEGRAL BRAZING MATERIALS - A layered structure comprising a base structure having a major surface, and a brazing layer secured to the major surface of the base structure, where the brazing layer is applied to the major surface prior to positioning the layered structure in contact with a turbine engine component. | 01-05-2012 |
20130004320 | METHOD OF ROTATED AIRFOILS - A method for forming a nozzle segment for a turbine stage of a gas turbine engine to a specific measurement range for a throat area. The nozzle segment comprising an inner platform, and outer platform, and a plurality of airfoils between the inner platform and outer platform. A requested throat area measurement is obtained for the nozzle segment, and a starting stacking angle for a plurality of through holes and pockets corresponding to the airfoils for both the inner platform and outer platform is selected, which are then machined. The airfoils, inner platform, and outer platform are assembled to form a vane segment that is machined to obtain a finished throat area. The finished throat area is measured, and a determination is made if the measured finish throat area complies with the requested throat area. | 01-03-2013 |
20140004372 | CHROMIUM DIFFUSION COATING | 01-02-2014 |