Eugene L Clark

US Patent:

6409795, Jun 25, 2002

Filed:

Nov 17, 1998

Appl. No.:

09/195117

Inventors:

George K. Sievers - Burbank CA
Eugene V. Clark - Burbank CA

Assignee:

General Electric Company - Schenectady NY

International Classification:

B22F 100

US Classification:

75255

Abstract:

Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HF precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y) alloys in which n is 0, 1 or more.

US Patent:

56832265, Nov 4, 1997

Filed:

May 17, 1996

Appl. No.:

8/649249

Inventors:

Eugene V. Clark - Tujunga CA
Ralph J. Ortolano - Tujunga CA

International Classification:

F04D 2944

US Classification:

415200

Abstract:

Steam turbine fluid directing components are improved in erosive wear resistance by application of either relatively tougher and relatively less hard thermal spray or relatively harder and relatively less tough diffusion alloy surface modification to different portions of the component as a function of the locally greater or locally smaller angle of attack of solid particles on those portions in the use condition of the component.

US Patent:

61031860, Aug 15, 2000

Filed:

Nov 18, 1998

Appl. No.:

9/195136

Inventors:

George K. Sievers - Burbank CA
Eugene V. Clark - Burbank CA

Assignee:

TMT Research Development, Inc. - Smith River CA

International Classification:

B22F 312
B22F 704

US Classification:

419 8

Abstract:

Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HE precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y). sub. n alloys in which n is 0, 1 or more.

US Patent:

58833145, Mar 16, 1999

Filed:

Jun 11, 1996

Appl. No.:

8/661494

Inventors:

George K. Sievers - Burbank CA
Eugene V. Clark - Tujunga CA

International Classification:

C22C 3302
C22C 3306

US Classification:

75230

Abstract:

Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HF precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y). sub. n alloys in which n is 0, 1 or more.

US Patent:

39619109, Jun 8, 1976

Filed:

Jan 8, 1975

Appl. No.:

5/539391

Inventors:

Gregor Baladjanian - Santa Monica CA
Eugene V. Clark - Northridge CA

Assignee:

Chromalloy American Corporation - New York NY

International Classification:

C23C 902
C23F 1700

US Classification:

29197

Abstract:

Superalloy structures, such as high temperature components for jet engines and the like, are provided with aluminum-containing diffusion coatings enabling guantum extensions of service life through unique distributions therein of rhodium. The rhodium is prediffused into the alloy structure, and the resultant distribution minimizes aluminum migration into the structure and thus maximizes protective coating performance.

US Patent:

55958311, Jan 21, 1997

Filed:

May 15, 1995

Appl. No.:

8/440849

Inventors:

Eugene V. Clark - Tujunga CA

International Classification:

B32B 1518
F01D 528

US Classification:

428679

Abstract:

Steam or gas turbine components comprising chromium steel have their fluid directing surfaces protected from corrosion by a surface layer coating consisting essentially of major weight amount of nickel and minor weight amounts of zinc, optionally with boron added, over a nickel preplate which limits deleterious diffusion of zinc into the surface substrate.