MCrAlY bond coat with enhanced Yttrium layer

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United States of America Patent

PATENT NO 9012032
SERIAL NO

14065726

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Abstract

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One or more embodiments relates to an MCrAlY bond coat comprising an MCrAlY layer in contact with a Y—Al2O3 layer. The MCrAlY layer is comprised of a γ-M solid solution, a β-MAl intermetallic phase, and Y-type intermetallics. The Y—Al2O3 layer is comprised of Yttrium atoms coordinated with oxygen atoms comprising the Al2O3 lattice. Both the MCrAlY layer and the Y—Al2O3 layer have a substantial absence of Y—Al oxides, providing advantage in the maintainability of the Yttrium reservoir within the MCrAlY bulk. The MCrAlY bond coat may be fabricated through application of a Y2O3 paste to an MCrAlY material, followed by heating in a non-oxidizing environment.

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Patent Owner(s)

  • THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hawk, Jeffrey A Salem, US 8 10
Jablonski, Paul D Salem, US 13 32

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