EP 2631325 A2 20130828 - Coating and coating method for gas turbine component
Title (en)
Coating and coating method for gas turbine component
Title (de)
Beschichtung und Beschichtungsverfahren für Gasturbinenkomponente
Title (fr)
Revêtement et procédé de revêtement pour composant de turbine à gaz
Publication
Application
Priority
US 201261633935 P 20120221
Abstract (en)
The present invention provides a protective coating for a gas turbine blade or other component wherein the duplex coating includes an aluminum-bearing coating, such as a diffusion aluminide, formed on a first, relatively higher temperature region of the blade/component and a later-applied chromium-bearing diffusion coating formed on an adjacent relatively lower temperature region of the blade/component subject to hot corrosion in service. The chromium-bearing coating is applied after the aluminum-bearing coating by masking that coating and depositing a metallic chromium coating on the adjacent region followed by diffusing the chromium into the blade/component alloy to form a chromium-enriched diffusion coating thereon.
IPC 8 full level
C23C 10/00 (2006.01); C23C 10/02 (2006.01); C23C 10/18 (2006.01); C23C 10/60 (2006.01)
CPC (source: EP US)
C23C 10/02 (2013.01 - EP US); C23C 10/58 (2013.01 - EP US); C25D 3/04 (2013.01 - EP); C25D 5/022 (2013.01 - EP US); C25D 5/12 (2013.01 - EP US); C25D 5/44 (2013.01 - EP); C25D 5/50 (2013.01 - EP); C25D 13/02 (2013.01 - EP US); C25D 13/12 (2013.01 - EP US); C25D 13/16 (2013.01 - US); F01D 5/288 (2013.01 - EP US); F01D 5/3007 (2013.01 - EP); F05D 2230/31 (2013.01 - EP); F05D 2300/121 (2013.01 - EP); F05D 2300/132 (2013.01 - EP)
Citation (applicant)
- US 5264245 A 19931123 - PUNOLA DAVID C [US], et al
- US 4132816 A 19790102 - BENDEN ROBERT S, et al
- US 3486927 A 19691230 - GAUJE GEORGES MAURICE CELESTIN
- US 5788823 A 19980804 - WARNES BRUCE M [US], et al
- US 5788832 A 19980804 - HOWARD CHARLES PETER [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2631325 A2 20130828; EP 2631325 A3 20170809; JP 2013216968 A 20131024; JP 6126852 B2 20170510; US 2016010472 A1 20160114
DOCDB simple family (application)
EP 13155956 A 20130220; JP 2013018304 A 20130201; US 201313815152 A 20130204