Superalloy component with a protective coating system

Details Superalloy component with a protective coating system Superalloy component with a protective coating system

1997-10-27

1999-11-16

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428633, 428469, 428701, 4272557, 4274193, 416241B, B32B 1504, F01D 528

Patent

active

059854677

ABSTRACT:
A nickel-based or cobalt-based superalloy substrate is covered with a protective system which is resistant to thermal, corrosive and erosive attack. An anchoring layer is disposed on the substrate. The anchoring layer is formed as an oxide compound, in particular alumina, doped with nitrogen. A ceramic coating is disposed on the anchoring layer. The modification of the anchoring layer prevents the transmission of diffusing elements through the anchoring layer to the thermal barrier layer.

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