EP 0886721 B1 20020605 - PROTECTIVE COATING FOR TUBING BLADES
Title (en)
PROTECTIVE COATING FOR TUBING BLADES
Title (de)
SCHUTZSCHICHT FÜR TURBINENSCHAUFEL
Title (fr)
COUCHE DE PROTECTION POUR AUBE DE TURBINE
Publication
Application
Priority
- DE 19609690 A 19960313
- EP 9700630 W 19970212
Abstract (en)
[origin: WO9734076A1] The invention relates to a turbine blade with a corrosion-resistant protective coating of MCrAlY. The aim of the invention is to provide a turbine blade on which the top coating is not subject to spallation. This aim is attained in that the surface layer of the protective MCrAlY coating consists, to a depth of 5 - 50 mu m, of a single-phase alloy in a large area spread evenly over the entire surface layer, where the single-phase alloy is obtained by remelting with a pulsed electron beam.
IPC 1-7
IPC 8 full level
C23C 4/08 (2006.01); C23C 4/18 (2006.01); F01D 5/28 (2006.01); F01D 25/00 (2006.01)
CPC (source: EP)
C23C 4/18 (2013.01); F01D 5/286 (2013.01); F01D 5/288 (2013.01); F05D 2230/90 (2013.01); F05D 2300/132 (2013.01); F05D 2300/611 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI
DOCDB simple family (publication)
WO 9734076 A1 19970918; AT E218670 T1 20020615; DE 19609690 A1 19971009; DE 19609690 C2 20001228; DE 59707422 D1 20020711; EP 0886721 A1 19981230; EP 0886721 B1 20020605; JP 3320739 B2 20020903; JP H11506186 A 19990602
DOCDB simple family (application)
EP 9700630 W 19970212; AT 97904418 T 19970212; DE 19609690 A 19960313; DE 59707422 T 19970212; EP 97904418 A 19970212; JP 53222097 A 19970212