General Electric Company

Kenneth Burrell Potter

Srikanth Chandrudu Kottilingam

Lawrence Bernard Kool

Robert Harold Cromer

Ganjiang Feng

Shan Liu

William Randall Thompson

Andrew John Elliott

David Carr

Gregory Keith Bouse

Kiyokazu Watanabe

Minoru Ishida

Kazuharu Hattori

A method of joining a first work piece and a second workpiece. The first and second workpieces may be rotor wheels of a rotor for a turbomachine. At least one of the workpieces includes an oxide dispersion strengthened alloy material and the first and second work pieces may be joined by welding a cladding on at least one of the workpieces to the other of the workpieces, without welding a substrate of the at least one workpiece which includes an oxide dispersion strengthened alloy material.

Rotors and methods of making the same

A single-crystal seed, apparatus and process for producing a casting having a single-crystal (SX) microstructure. The seed has a geometry that includes a vertex capable of destabilizing an oxide film that forms at the interface between the seed and a molten metal during the casting process, and thereby promotes a continuous single-crystal grain growth and reduces grain misorientation defects that can initiate from the seed/metal interface.

Unidirectional solidification process and apparatus and single-crystal seed therefor

A method for removing a chromide coating from the surface of a substrate is described. The coating is treated with a composition which includes an acid having the formula HAF, where 'A' can be Si, Ge, Ti, Zr, Al, or Ga; and x is 1&#x2013;6. An exemplary acid is hexafluorosilicic acid. The composition may also include a second acid, such as phosphoric acid or nitric acid. In some instances, a third acid is employed, such as hydrochloric acid. A related repair method for replacing a worn or damaged chromide coating is described. The coating is often applied to portions of turbine engine components made from superalloy materials.

Process for removing chromide coatings from metal substrates, and related compositions

A wear reduction kit for a combustion system of a gas turbine includes:

Wear reduction kit for gas turbine combustors

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Simpsonville, SC, United States of America

Kenneth Burrell Potter