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Barrier layer for a MCrAlY basecoat superalloy combination

United States Patent

March 27, 2001
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A turbine component contains a substrate (22) such as a superalloy, a basecoat (24) of the type MCrAlY, and a continuous barrier layer (28) between the substrate and basecoat, where the barrier layer (28) is made of an alloy of (Re, Ta, Ru, Os)X, where X can be Ni, Co or their mixture, where the barrier layer is at least 2 micrometers thick and substantially prevents materials from both the basecoat and substrate from migrating through it.
Sabol; Stephen M. (Orlando, FL), Goedjen; John G. (Oviedo, FL), Vance; Steven J. (Orlando, FL)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 408,322
September 29, 1999
GOVERNMENT CONTRACT The Government of the United States of America has rights in this invention pursuant to Contract DE-AC05-950R22242, awarded by the United States Department of Energy.