| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1501872 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Superduplex stainless steels UNS S32750 with three different microstructures were evaluated in corrosion testing in a 70,000 ppm NaCl brine at 25, 60 and 90 °C. The corrosion behavior is strongly dependent on the microstructure, namely the presence of sigma phase precipitates. Besides the expected decrease of the pitting potential with temperature, results showed that the combined effect of very high chloride concentration and high temperature was deleterious even for the as-received samples, for which no sigma precipitation was found.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Ivan N. Bastos, Sérgio S.M. Tavares, Francis Dalard, Ricardo P. Nogueira,