Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470881 | Corrosion Science | 2009 | 10 Pages |
Abstract
NiTi alloy is here investigated as an alternative coating to stainless steel since it is considered to possess good corrosion properties. Three different thermal spray techniques (high velocity oxy-fuel –HVOF–, vacuum plasma spray –VPS– and atmospheric plasma spray quenching –APS+Q–) have been used for building the coatings, and electrochemical tests have been carried out for corrosion evaluation. Open-circuit tests have revealed that the VPS-coating shows fairly good corrosion resistance, both in the as-sprayed and polished forms. The HVOF coatings however, showed a strong dependence on the surface conditions and APS+Q is dominated by electrolyte penetration through coating cracks, thus exhibiting a higher icorr.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.M. Guilemany, N. Cinca, S. Dosta, A.V. Benedetti,