General Electric Company

Ge Infrastructure Technology, LLC

David Vincent Bucci

Srikanth Chandrudu Kottilingam

Dechao Lin

Yan Cui

Surinder Singh Pabla

Ganjiang Feng

Krishnamurthy Anand

Kathleen Blanche Morey

David Andrew Helmick

Biju Dasan

Jon Conrad Schaeffer

Yuk-Chiu Lau

Dennis William Cavanaugh

Gary Michael Itzel

Canan Uslu Hardwicke

Ronald Ralph Cairo

Daniel Anthony Nowak

Brad Wilson Vantassel

Ariel Caesar-Prepena Jacala

Doyle Clyde Lewis

Benjamin Paul Lacy

Brian Lee Tollison

Lawrence Bernard Kool

David Edward Schick

Paul Stephen DiMascio

Brendon James Leary

Nicole Jessica Tibbetts

Prabhjot Singh

Thomas Earl Dyson

Kevin Leon Bruce

Mohandas Nayak

Warren Arthur Nelson

Paul Mathew

Matthew Joseph Laylock

Eklavya Calla

Cem Murat Eminoglu

David Joseph Mitchell

Warren Martin Miglietti

Thomas Michael Moors

Lacey Lynn Schwab

Sathisha Chikkabikkodu Hanum

John Gregory Obeirne

Ravikiran Kopparthi

David James Monk

Guruprasad Sundararajan

Shan Liu

Jamison William Janawitz

Aaron Edward Engel

Ravindra Annigeri

Ronald Lee Souther

Seung-Woo Choi

Vinod Kumar Pareek

Paul S Dimascio

Eric Eicher McConnell

Daniel Edward Delfino

Lyndsay Marie Kibler

Mark Roger Brown

Sharon Trombly Swede

Xiaoxue Diao

Thodla Ramgopal

Patrick Thomas Walsh

Jane Marie Lipkin

Matthew James O'Connell

David Allen Singletary

Terry Howard Strout

Warren Martin Andre Miglietti

Tamara Jean Muth

John Adams

Ron Hendrix

Joseph Debarro

Tyrone Robert Mortensen

Janna Lannell Segrest

Joseph Anthony DeBarro

Kivilcim Onal Hance

Nitin Jayaprakash

Guru Prasad Sundararajan

William Ladner

Matthew J Laylock

Paul Stephen Dimascio

Eric Eicher Mcconnell

Srikanth Chandrudu Kotilingam

Ron Lee Souther

A method includes applying a material coating to a surface of a machine component, wherein the material coating is formed from a combination of a hardfacing material, aluminum-containing particles, and a braze material. The method also includes thermally treating the material coating at a temperature to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material, and the braze material is configured to facilitate binding between the material coating and the surface of the machine component.

Oxidation and wear resistant brazed coating

A method includes applying a material coating on a surface of a machine component using a thermal spray, wherein the material coating is formed from a combination of a hardfacing material and aluminum-containing particles. The method also includes thermally treating the material coating to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material.

Oxidation and wear resistant coating

A method for forming a vertically cracked thermal barrier coating is disclosed including positioning an article relative to a heat source. The article includes a thermal barrier coating disposed on a first surface of a substrate, and the substrate includes a second surface distal across the substrate from the first surface. Heat is applied locally to at least one discrete portion of the second surface of the substrate. At least one vertical crack in the thermal barrier coating is formed disposed over the at least one discrete portion. An article is disclosed including a substrate and a vertically-cracked thermal barrier coating disposed on the substrate. The vertically cracked thermal barrier coating includes at least one vertical crack in the thermal barrier coating and at least one of a low density of less than 85% of a theoretical density for the thermal barrier coating and a selective crack distribution.

Methods for forming vertically cracked thermal barrier coatings and articles including vertically cracked thermal barrier coatings

A method of depositing a coating on a component of a turbine engine. The method includes forming a turbine component including at least one cooling flow passage in fluid communication with an aperture on a surface of the turbine component. A protective shield is formed on an inner surface of the at least one cooling flow passage and extending to an exterior of the turbine component via the aperture. During a coating process, the protective shield is configured to block the coating from being deposited in the at least one cooling flow passage via the aperture. Subsequent to coating, at least a portion of the protective shield is removed to provide for passage of a cooling fluid flow in the at least one cooling flow passage. The cooling fluid flow exits the turbine component through the aperture. A turbine component employing user of the protective shield is also disclosed.

Protective shields for improved coating of turbine component cooling features

A method of controlling an extent of a thermal barrier coating (TBC) sheet spall and a hot gas path (HGP) component are disclosed. The method provides an HGP component having a body with an exterior surface. Controlling the extent of the TBC sheet spall includes forming a TBC over a selected portion of the exterior surface of the body. The TBC includes a plurality of segments in a cellular pattern. Each segment is defined by one or more slots in the TBC, and each segment has a predefined area such that the extent of the TBC sheet spall is limited by the predefined area of each of the plurality of segments that constitute the TBC sheet spall.

Controlling extent of TBC sheet spall

A method of welding using a weld filler additive and a weld filler additive are provided. The method includes the step of welding the component with a filler additive comprising a sufficient amount of each of Co, Cr, Al, Ti, Mo, Fe, B, C, Nb, and Ni, the component including a hard-to-weld base alloy. The method further includes the step of forming an easy-to-weld target alloy on a surface of the component from the welding.

Weld filler additive and method of welding

A method of welding using a weld filler additive and a weld filler additive are provided. The method includes the step of welding the component with a filler additive comprising a sufficient amount of each of W, Co, Cr, Al, Ti, Mo, Fe, B, C, Nb, and Ni, the component including a hard-to-weld base alloy. The method further includes the step of forming an easy-to-weld target alloy on a surface of the component from the welding.

Molded articles and methods for forming molded articles are provided. For example, a molded article comprises a first region formed by a first casting material and a second region formed by mixing a molten or liquid portion of the first casting material and a second casting material. The first casting material is a molten, liquid, or fluid metal alloy, and the second casting material is a molten or fluid metal alloy. The first casting material has a different chemical composition than the second casting material. The first region and the second region are cast as one integral casting using directional solidification, and the first region and the second region have different microstructure patterns. The molded article has a lower concentration of impurities than were present in the first and second casting materials, and an interface between the first region and the second region is devoid of an oxidation layer.

Casting methods and molded articles produced therefrom

Manufactured articles, and methods of manufacturing enhanced surface smoothed components and articles. More particularly, surface smoothed components and articles, such as combustor components of turbine engines, having surface treatment conferring reduced roughness for enhanced performance and reduced wear related reduction in part life.

Manufactured article and method

A process for forming a diffusion coating on a substrate is disclosed, including preparing a slurry including a donor metal powder, an activator powder, and a binder, and applying the slurry to the substrate. The slurry is dried on the substrate, forming a slurry layer on the substrate. A covering composition is applied over the slurry layer, and the covering composition is dried, forming at least one covering layer enclosing the slurry layer against the substrate. The slurry layer and the at least one covering layer are heated to form the diffusion coating on the substrate, the diffusion coating including an additive layer and an interdiffusion zone disposed between the substrate and the additive layer.

Process for forming diffusion coating on substrate

A system and method for repairing a metal substrate includes an electrospark device and an electrode removably supported in the electrode holder. The electrospark device applies a coating of a material when placed into contact with the metal substrate. A cooling device to lowers the temperature of shielding gas flow below an ambient temperature. A conduit is arranged to direct a flow of the shielding gas to the interface of the electrode and the substrate to cool the area of the substrate receiving the coating.

Electrospark deposition system for repair of gas turbine

A coating method is disclosed including disposing a coating composition into a fluidly communicating space defined by an internal surface of an article. The fluidly communicating space includes at least one aperture, which is sealed, forming an enclosed space. The internal surface and the coating composition are heated under autogenous pressure, coating the internal surface with the coating composition. The at least one aperture is unsealed, re-forming the fluidly communicating space. Another coating method is disclosed in which the coating composition is disposed into a reservoir which is connected in fluid communication with the enclosed space prior to heating under autogenous pressure, coating the internal surface with the coating composition. Yet another coating method is disclosed in which the coating composition and the article are disposed in a vessel, which is sealed, forming the enclosed space prior to heating under autogenous pressure, coating the internal surface with the coating composition.

Coating methods

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Simpsonville, SC, United States of America

David Vincent Bucci