Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for repairing a metal component having a crack, the method comprising depositing a brazing material into the crack of the metal component, and exposing the metal component to a plurality of heating cycles. Each successive heating cycle has a temperature that is less than a temperature of a previous heating cycle, and a duration that is at least as long as a duration of the previous heating cycle. The plurality of heating cycles comprises an initial heating cycle having a temperature sufficient to at least substantially melt the brazing material within the crack.

Abstract: A maskant composition and a method of diffusion coating a metal component with the use of the maskant composition, where the maskant composition comprises a cross-linkable resin, a photoinitiator, and a gettering agent.