- 1
- 2
Oxidation and wear behaviour of the high velocity thermal spray coatings
J.M. Guilemany, M. Torrel, S. Dosta, J.R. Miguel
Revista Metalurgia 44 (4) (2008) 317–325
High Velocity Oxy Fuel Thermal Spray Technology (HVOF) produces coatings with high erosion and corrosion resitance. These E-C processes are the most usual problems of municipal solid waste incineration plants. This work shows the characterisatiopn of the optimal coatings obtained under wear, erosion, corrosion and E-C tests. These tests reproduce the process that takes place inside of this kind of plants.
A Ni-based powder alloy was used as feedstock material for this study. The results show that spraying gas (Hydrogen or Propylene) and different spray parameters give better corrosion or erosion properties. The coatings sprayed by Hydrogen show better corrosion behaviour. The coatings sprayed by Propylene shows better mechanical and tribological propoerties. In both cases the Ni Based HVOF coatings show good protection behaviour for the exachanges on the MSWI.
