C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 10/48 (2006.01) C23C 10/52 (2006.01) C23C 16/08 (2006.01) C23C 28/00 (2006.01) C23C 30/00 (2006.01) F01D 5/28 (2006.01)
Patent
CA 2677941
The invention relates to a coating, particularly for gas turbine components made of a superalloy, wherein the same has an outer layer and an inner layer. According to the invention the outer layer constitutes 10% to 60% of the overall coating, wherein the outer layer is substantially made of a ß-NiAl phase having an Al proportion of between 23 and 35 weight-%, wherein the inner layer constitutes 90% to 40% of the overall coating, and wherein the inner layer is substantially made of a .gamma.-NiAl phase having an Al proportion of a maximum of 15 weight-%.
L'invention concerne un revêtement, notamment pour composants de turbine à gaz réalisés dans un superalliage, comprenant une couche externe et une couche interne. Selon l'invention, la couche externe représente 10 % à 60 % du revêtement global et est sensiblement constituée d'une phase ß-NiAl comportant une fraction d'aluminium de 23 à 35 % en poids, et la couche interne représente 90 % à 40 % du revêtement global et est sensiblement constituée d'une phase .gamma.-NiAl comportant une fraction d'aluminium de maximum 15 % en poids.
Kohlscheen Jorn
Niedermeier Markus
Pillhofer Horst
Walter Heinrich
Marks & Clerk
Mtu Aero Engines Gmbh
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