Title:
GRADED PLATINUM DIFFUSION ALUMINIDE COATING
Document Type and Number:
WIPO Patent Application WO2001098561
Kind Code:
A3
Abstract:
Method for forming on a superalloy or other metallic substrate a platinum graded, outward single phase diffusion aluminide coating (100) on a surface of the substrate by depositing a layer comprising Pt on the substrate and then gas phase aluminizing the substrate in a coating chamber having a solid source of aluminum (e.g. aluminum alloy particulates) disposed therein close enough to the surface of the substrate to form at an elevated substrate coating temperature a diffusion aluminide coating having an inner diffusion zone (100a) and outer additive single (Ni,Pt)Al phase layer (100b) having a concentration of platinum that is relatively higher at an outermost coating region than at an innermost coating region adjacent the diffusion zone.
Inventors:
BRAITHWAITE DWAYNE A
RUSSO VINCENT J
CANNON LLOYD W
SLAVIN THOMAS P
RUSSO VINCENT J
CANNON LLOYD W
SLAVIN THOMAS P
Application Number:
PCT/US2001/019407
Publication Date:
March 21, 2002
Filing Date:
June 18, 2001
Export Citation:
Assignee:
HOWMET RES CORP (US)
International Classes:
F01D5/18; C22C5/04; C22C19/05; C22C27/04; C23C10/02; C23C10/06; C23C10/08; C23C10/56; C23C28/00; F01D5/28; (IPC1-7): B32B15/04
Foreign References:
| US6291014B1 | 2001-09-18 | |||
| US5843588A | 1998-12-01 |
Other References:
See also references of EP 1301654A4
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