| Thermal Spray Coatings from WC-Co Powders Produced by Mechanically Activated Synthesis | ||
| Dr. Sergei Zimakov1, Priidu Peetsalu1, Jüri Pirso1, Priit Kulu1 and Valdek Mikli2, 1Department of Materials Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn, 19086, Estonia, 2Centre for Materials Research, Tallinn University of Technology, Ehitajate tee 5, Tallinn, 19086, Estonia
In the present study WC-Co feedstock powder was produced by the process termed as mechanically activated synthesis (MAS). The material was sprayed by the HVOF process to investigate the properties of the coatings in comparison to standart materials. The microstructure, phase structure, porosity and microhardness values of the coatings were studied. The abrasion wear resistance of the coatings was elavuated by rubber wheel abrasion tests. Results of abrasive wear tests show that new material have superior properties compared to conventional WC-Co coatings. | ||