Corrosion and passivation of low-temperature nitrided AISI 304L and 316L stainless steels in acidified sodium sulphate solution

• DOI: 10.1016/j.corsci.2007.07.003
• Publication Date: 2007-08-01T08:55:29Z
• Authors: M. Kuczynska-Wydo...; J. Flis
• Keywords: Passivation

Abstract 304L and 316L steels were nitrided at 425 °C for 30 h and examined at various depths in 0.1 M Na 2 SO 4 acidified to pH 3.0. In the near-surface region with about 7–14 wt% N, at potentials of active state anodic currents were much higher than those for untreated steels, whereas in deeper regions with