MCrAlY bond coating and method of depositing said MCrAlY...

Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...

Reexamination Certificate

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Details

C416S24100B, C428S650000, C428S670000, C428S679000, C428S612000

Reexamination Certificate

active

10887531

ABSTRACT:
A method of depositing a bond coating to a surface of an article includes the steps of depositing an inner layer of the bond coating consisting of β-NiAl comprising Fe, Ga, Mo, B, Hf or Zr or γ/β-MCrAlY comprising Fe, Ga, Mo, B, Hf or Zr or γ/γ′- or γ-MCrAlY, and depositing an outer layer of the bond coating, which is more coarse the in the inner layer, consisting of β-NiAl comprising Fe, Ga, Mo, B, Hf or Zr or γ/β-MCrAlY comprising Fe, Ga, Mo, B, Hf or Zr or γ/γ′- or γ-MCrAlY, wherein said elements Fe, Ga, Mo, B, Hf or Zr above mentioned are present individually or in combination. The coating also includes a noble metal selected from the group consisting of platinum, palladium and rhodium in the inner and outer layer or as a separate layer.

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