Bond coats for turbine components and method of applying the sam

Stock material or miscellaneous articles – All metal or with adjacent metals – Having composition – density – or hardness gradient

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428621, 428633, 428678, 420437, 420440, 420443, 420445, 416241R, B32B 900

Patent

active

060601744

ABSTRACT:
A substrate (12) such as a superalloy turbine component is coated with a basecoat (14) of the type MCrAlY which also contains boron, where the amount of boron in the basecoat is in a concentration gradient where more boron is present near the top (16) than the bottom (20) of the basecoat (14) and boron is present in an average amount of over 0.50 wt. % throughout the basecoat cross-section (14) of the composite (10).

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