B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
B22F 3/10 (2006.01) B22F 5/00 (2006.01) F01D 25/24 (2006.01) F02C 7/30 (2006.01)
Patent
CA 2581908
A method for repairing a gas turbine stationary flowpath shroud. The method comprises providing a superalloy gas turbine stationary flowpath shroud that has previously been in service. The method further comprises preparing a restoration coating for application to the flowpath surface of the shroud by the steps of providing a precursor mixture comprising a higher-melting-point alloy component, a lower--melting-point alloy component, and a fugitive binder. A perform is prepared from the components and pre-sintered into a mildly curved form. The partially densified perform is applied to the flowpath surface and thermally bonded to the flowpath surface, forming a restoration coating.
Budinger David E.
Dasilva Paul A.
Reverman Jeffrey J.
Company General Electric
Craig Wilson And Company
LandOfFree
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