Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2005-08-02
2005-08-02
La Villa, Michael (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S666000, C428S650000, C428S651000, C428S680000, C428S681000, C428S679000, C428S655000, C416S24100B, C416S22900R
Reexamination Certificate
active
06924045
ABSTRACT:
It is disclosed a bond or overlay MCrAlY-coating for the use within a high temperature environment for the protection of the base alloy of turbine blades and vanes. The MCrAlY-coating having a γ or γ/γ′-structure comprises a dispersion of β-NiAl and/or γ/β-MCrAlY particles. This provides a reservoir of aluminum reservoir to coatings wherein the reservoir replenish the aluminum lost due to oxidation and interdiffusion during service. The β-NiAl and/or γ/β-MCrAlY is the aluminum reservoir and is applied by mixing appropriate powders with γ or γ/γ′ powders.
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Khan Abdus S.
Konter Maxime
Schmees Robert
ALSTOM Technology LTD
Cermak Adam J.
Cermak & Kenealy LLP
La Villa Michael
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