Ganjiang Feng

7367123, May 6, 2008

May 12, 2005

11/127174

Gary Michael Itzel - Simpsonville SC, US
Ariel Caesar-Prepena Jacala - Simpsonville SC, US
Doyle C. Lewis - West Union SC, US
Kathleen B. Morey - Scotia NY, US
David V. Bucci - Simpsonville SC, US
Ganjiang Feng - Greenville SC, US

General Electric Company - Schenectady NY

B21K 25/00

298892, 416500

A damper pin for a turbine bucket includes an elongated main body portion of substantially uniform cross-sectional shape having opposite ends, one only of said opposite ends coated with a corrosion and oxidation-resistant coating.

7628588, Dec 8, 2009

Sep 20, 2007

11/902252

Gary Michael Itzel - Simpsonville SC, US
Ariel Caesar-Prepena Jacala - Simpsonville SC, US
Doyle C. Lewis - Greer SC, US
Kathleen B. Morey - Taylors SC, US
David V. Bucci - Simpsonville SC, US
Ganjiang Feng - Greenville SC, US

General Electric Company - Schenectady NY

F01D 5/10

416190, 416220 R, 416241 R, 416500, 415119

A damper pin for a turbine bucket includes an elongated main body portion of substantially uniform cross-sectional shape having opposite ends, one only of said opposite ends coated with a corrosion and oxidation-resistant coating.

7727318, Jun 1, 2010

Jan 9, 2007

11/621325

Ganjiang Feng - Greenville SC, US
Canan Uslu Hardwicke - Simpsonville SC, US
Melvin Robert Jackson - Corea ME, US

General Electric Company - Schenectady NY

C23C 16/18
C23C 16/00
C25D 1/08

106 121, 106 105, 428612

Improved compositions are described for the protection of gas turbine parts at elevated temperatures. The compositions are of the MCrAlY type, wherein M is selected from nickel, or a combination of nickel with cobalt, iron, or combinations thereof. The compositions further comprise palladium, platinum, rhodium, or combinations thereof, hafnium, titanium, zirconium, or combinations thereof; and can further include silicon, germanium, or combinations thereof, wherein the composition results in improved Al retention properties. Also disclosed herein are articles comprising the coatings.

7842402, Nov 30, 2010

Mar 31, 2006

11/395633

Ganjiang Feng - Greenville SC, US
Paul S. Dimascio - Greer SC, US
Jon C. Schaeffer - Greenville SC, US

General Electric Company - Schenectady NY

B32B 15/04

428632, 428680, 427404, 427456, 416241 R

A thermal barrier coating (TBC) system is provided. The system includes at least one thermal barrier coating (TBC) bond coat layer formed over a substrate surface region. The TBC bond coat layer includes at least one TBC bond coat material. The TBC bond coat material is a nickel-chromium-aluminum-yttrium (NiCrAlY) composition that also includes silicon (Si), hafnium (Hf) and less than 10 weight percent (wt %) cobalt (Co). The TBC system further includes at least one top coat layer formed over the TBC bond coat layer.

7846243, Dec 7, 2010

Jan 9, 2007

11/621297

Canan Uslu Hardwicke - Simpsonville SC, US
Ganjiang Feng - Greenville SC, US
Warren Martin Miglietti - Greenville SC, US

General Electric Company - Schenectady NY

C23C 16/18
C23C 16/00
C25D 1/08

106 121, 106 105, 428612

Improved compositions are described for the protection of gas turbine parts at elevated temperatures. The compositions are of the MCrAlY type, wherein M is selected from nickel, or a combination of nickel with cobalt, iron, or combinations thereof. The compositions further comprise ruthenium, rhenium, or a combination thereof, a Group 4 metal (e. g. , hafnium, zirconium, titanium), and can further include silicon and/or germanium, where the composition results in improved aluminum diffusion properties. Also disclosed herein are articles comprising the composition.

7931759, Apr 26, 2011

Jan 9, 2007

11/621309

Canan Uslu Hardwicke - Simpsonville SC, US
Ganjiang Feng - Greenville SC, US
Melvin Robert Jackson - Corea ME, US

General Electric Company - Schenectady NY

C22C 19/05
C23C 30/00
B32B 15/01
B32B 15/18
B32B 15/00
B22F 7/00

148428, 148 22, 148410, 428680, 428656, 428678, 106 105

Improved compositions are described for the protection of gas turbine parts at elevated temperatures. The compositions are of the MCrAlY type, wherein M is Nickel, or Nickel in combination with cobalt and/or iron. The compositions further comprise a lanthanide, a group 4 metal selected from hafnium, zirconium, titanium, or a combination of these, and optionally, a group 14 element selected from silicon and/or germanium. The combination results in improved Al retention properties. Also disclosed herein are articles comprising the coatings.

8186418, May 29, 2012

Sep 30, 2010

12/894998

Shan Liu - Central SC, US
Jon Conrad Schaeffer - Simpsonville SC, US
Ganjiang Feng - Greenville SC, US
Stephen Joseph Balsone - Simpsonville SC, US

General Electric Company - Schenectady NY

B22D 27/00
B22D 25/00
B22D 27/04

1641221, 1641222, 1643381

An apparatus and method for casting an alloy using a unidirectional casting technique. The apparatus includes a mold adapted to contain a molten quantity of an alloy, a primary heating zone adapted to heat the mold and the molten alloy therein to a temperature above the liquidus temperature of the alloy, a cooling zone adapted to cool the mold and molten alloy therein to a temperature below the solidus temperature of the alloy and thereby yield the unidirectionally-solidified casting, and an insulation zone between the primary heating zone and the cooling zone. The apparatus also has a secondary heating zone separated from the insulation zone by the primary heating zone. The secondary heating zone maintains the mold and the molten alloy therein at a temperature below the liquidus temperature of the alloy. The temperatures within the primary and secondary heating zones are individually set and controlled.

8262812, Sep 11, 2012

Apr 4, 2007

11/696385

David Andrew Helmick - Fountain Inn SC, US
Dennis William Cavanaugh - Simpsonville SC, US
Ganjiang Feng - Greenville SC, US
David Vincent Bucci - Simpsonville SC, US

General Electric Company - Schenectady NY

C23C 10/00
C21D 1/70
B05D 3/02

148268, 148537, 4273831

In one embodiment, a method for forming an article with a diffusion portion comprises: forming a slurry comprising chromium and silicon, applying the slurry to the article, and heating the article to a sufficient temperature and for a sufficient period of time to diffuse chromium and silicon into the article and form a diffusion portion comprising silicon and a microstructure comprising α-chromium. In one embodiment, a gas turbine component comprises: a superalloy and a diffusion portion having a depth of less than or equal to 60 μm measured from the superalloy surface into the gas turbine component. The diffusion portion has a diffusion surface having a microstructure comprising greater than or equal to 40% by volume α-chromium.