A. J. Sherman, Powdermet, Inc., Euclid, OH
Wear coatings are currently dominated by tungsten carbide and chrome carbide based materials. Alumina and Silicon carbide offer lighterweight, lower cost alternatives but are difficult to apply via thermal spray. The use of surface-engineered (coated) ceramic particles and properly designed cermet thermal spray powders eliminates this difficulty. The application, structure, and wear performance of several low cost cermet thermal spray coatings will be presented.
Summary: Wear performance of Alumina and Silicon carbide cermet coatings applied via HVOF will be presented. The use of surface-engineered (coated) ceramic particles, and the application, structure, and wear performance of several low cost cermet thermal spray coatings will be presented.
