Honeywell International Inc.

George Reimer

Derek Raybould

James Piascik

Murali N Madhava

Mark C Morris

Harry Lester Kington

Donald G Godfrey

Richard Bryce Fox

William F Hehmann

Yiping Hu

Vincent Chung

Lee Poandl

Timothy R Duffy

Margaret M Floyd

Daira Legzdina

Amol R Gholkar

Derek Raybold

Methods for producing a high temperature oxidation and hot corrosion resistant MCrAlX coating on a superalloy substrate include applying an M-metal, chromium, and aluminum or an aluminum alloy comprising a reactive element to at least one surface of the superalloy component by electroplating at electroplating conditions below 100&#xb0; C. in a plating bath thereby forming a plated component and heat treating the plated component.

Methods for producing a high temperature oxidation resistant MCrAlX coating on superalloy substrates

Substantially defect-free titanium aluminide components and methods are provided for manufacturing the same from articles formed by consolidation processes. The method includes providing an intermediate article comprised of a titanium aluminide alloy and formed by a consolidation process. The intermediate article is encapsulated with an aluminum-containing encapsulation layer. The intermediate article is compacted after the encapsulation step. A substantially defect-free titanium aluminide component comprises a compacted three-dimensional article comprised of titanium aluminide and formed by a consolidation process and an aluminum-containing encapsulation layer on at least one surface of the compacted three-dimensional article. The aluminum-containing encapsulation layer comprises an aluminide material, MCrAlY wherein M is cobalt, nickel, or a combination of cobalt and nickel, or TiAlCr.

Methods for manufacturing titanium aluminide components from articles formed by consolidation processes

Methods for producing a high temperature oxidation resistant coating on a superalloy component and the coated superalloy component produced thereby are provided. Aluminum or an aluminum alloy is applied to at least one surface of the superalloy component by electroplating in an ionic liquid aluminum plating bath to form a plated component. The plated component is heat treated at a first temperature of about 600&#xb0; C. to about 650&#xb0; C. and then further heat treated at a second temperature of about 700&#xb0; C. to about 1050&#xb0; C. for about 0.50 hours to about two hours or at a second temperature of about 750&#xb0; C. to about 900&#xb0; C. for about 12 to about 20 hours.

Methods for producing a high temperature oxidation resistant coating on superalloy substrates and the coated superalloy substrates thereby produced

A quasi-single phase or single phase thick platinum nickel aluminide coating and methods for forming the coating over a nickel-based superalloy substrate are provided. The method includes the steps of forming a metal layer over a surface of the nickel-based superalloy substrate, the metal layer comprising platinum, growing a diffusion zone comprising a platinum nickel alloy layer from the metal layer and the nickel-based superalloy substrate, and subjecting the platinum nickel alloy to one or more aluminization cycles to transform the platinum nickel alloy into a platinum nickel aluminide coating having a platinum aluminide phase formed therein.

Method for forming thick quasi-single phase and single phase platinum nickel aluminide coatings

The present invention provides a chromium and active elements modified platinum aluminide coating that may be used on a surface of a gas turbine engine component such as a turbine blade. The coating may be used as a protective coating that impedes the progress of corrosion, oxidation, and sulfidation in superalloy materials that comprise the substrate of the turbine blade. Additionally, the coating may be used as a bond coat onto which a thermal barrier coating is deposited. The presence of active elements as well as chromium and platinum provides improved corrosion, oxidation, and sulfidation resistance. The coating is applied using an electron beam physical vapor deposition. The coating is applied alternatively using selected sequential diffusion processing steps involving chromium, platinum and aluminum.

Chromium and active elements modified platinum aluminide coatings

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Simpsonville, SC, United States of America

George Reimer