Gas turbine blade having a monocrystalline airfoil with a...

Details Gas turbine blade having a monocrystalline airfoil with a... Gas turbine blade having a monocrystalline airfoil with a...

2007-10-09

2007-10-09

Lavilla, Michael E. (Department: 1775)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Radial flow devices

C416S24100B, C029S889700, C029S889710, C029S402090, C029S402110, C029S402130, C428S680000, C148S428000, C228S262300

Reexamination Certificate

active

11054269

ABSTRACT:
A repaired gas turbine blade includes a turbine blade body having a monocrystalline airfoil made of a first nickel-base superalloy, and a repair squealer tip welded to a tip of the airfoil. The repair squealer tip is made of a second nickel-base superalloy different from the first nickel-base superalloy and having less than about 0.15 weight percent total of carbon, boron, silicon, zirconium, and hafnium.

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