In this study, dense multicomponent NiCoCrAlTaY bond coats and feather-structured YSZ topcoats are deposited on DZ40M alloy vane surfaces by the PS-PVD method. Based on thickness measurements and microstructure examination, it is shown that the double vane surface was completely covered by both layers. The thickest portion of the coating was found close to the leading and trailing edges of the vane. The results show that it is possible to manufacture TBCs, including the bond coat and topcoat, on first-stage turbine blades by a single PS-PVD process.

coating microstructure, double guide vane, NiCoCrAlTaY bond coat, plasma spray-physical vapor deposition, thermal barrier coating thickness, YSZ topcoat
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2016
DVS Media GmbH
Topics
Thermal barrier coatings Nickel-cobalt-chromium alloys Yttria-stabilized zirconia Physical vapor deposition Plasma spray coating Turbine blades
Issue Section:
Poster Session: Aerospace Applications
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