Materials for advanced turbine engines (MATE). Project 4: erosion resistant compressor airfoil coating
The ability of coatings to provide at least a 2X improvement in particulate erosion resistance for steel, nickel and titanium compressor airfoils was identified and demonstrated. Coating materials evaluated included plasma sprayed cobalt tungsten carbide, nickel carbide and diffusion applied chromium plus boron. Several processing parameters for plasma spray processing and diffusion coating were evaluated to identify coating systems having the most potential for providing airfoil erosion resistance. Based on laboratory results and analytical evaluations, selected coating systems were applied to gas turbine blades and evaluated for surface finish, burner rig erosion resistance and effect on high cycle fatigue strength. Based on these tests, the following coatings were recommended for engine testing: Gator-Gard plasma spray 88WC-12Co on titanium alloy airfoils, plasma spray 83WC-17Co on steel and nickel alloy airfoils, and Cr+B on nickel alloy airfoils.
- Research Organization:
- Pratt and Whitney Aircraft, East Hartford, CT (USA)
- OSTI ID:
- 5829940
- Report Number(s):
- N-87-27029; NASA-CR-179622; NAS-1.26:179622; PWA-5574-206
- Country of Publication:
- United States
- Language:
- English
Similar Records
Erosion and fatigue behavior of coated titanium alloys for gas turbine engine compressor applications. Final report
Simulation of the erosion and corrosion of materials in fluidized bed combustors
Related Subjects
360105* -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALLOYS
BORON ADDITIONS
BORON ALLOYS
CARBIDES
CARBON COMPOUNDS
CHROMIUM
COATINGS
COBALT CARBIDES
COBALT COMPOUNDS
COMPRESSOR BLADES
DIFFUSION WELDING
ELEMENTS
EROSION
FABRICATION
FATIGUE
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MECHANICAL PROPERTIES
METALS
NICKEL ALLOYS
NICKEL CARBIDES
NICKEL COMPOUNDS
PROTECTIVE COATINGS
REFRACTORY METAL COMPOUNDS
STEELS
SURFACE FINISHING
TITANIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
WEAR RESISTANCE
WELDING