Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
- /
- Pages.692-693
- /
- 2006
NiAl Behavior at Plasma Spray Deposition
- Orban, Radu L. (Technical University of Cluj-Napoca) ;
- Lucaci, Mariana (National Institute for Research and Development in Electrical Engineering ICPE-CA) ;
- Rosso, Mario (National Institute for Research and Development in Electrical Engineering ICPE-CA) ;
- Grande, Marco Actis (Politecnico di Torino)
- Published : 2006.09.24
Abstract
Behavior of stoichiometric and near-stoichiometric NiAl at plasma spray deposition, without and with a bond coat, for coating layers realization on a low alloyed steel substrate, has been investigated. In all variants, NiAl particle melting and subsequent welding at the impact with substrate were observed, forming a relatively compact and adherent coating layer with the NiAl stability maintaining - all assuring the coating layer oxidation and corrosion resistance. Good results from these points of view, also validated through corrosion tests, were obtained for 45:55 Ni:Al composition without a bond coat but adopting an Ar protective surrounding of plasma jet.