Journal
CORROSION SCIENCE
Volume 57, Issue -, Pages 89-98Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.12.030
Keywords
Stainless steel; TEM; Inclusion; Pitting corrosion; Stress corrosion
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The work addresses the influence of Cu and Mo additions on corrosion resistance of ferritic stainless steels in chloride media. According to the results, 0.5% Cu addition and the precipitation of epsilon-Cu phases decreased the pitting corrosion resistance in chloride media. The addition of both Cu and Mo to 19% Cr ferritic stainless steels causes SCC and the susceptibility to SCC increases with the aging treatment. The SCC initiated from pitting of epsilon-Cu phases and was mostly intergranular. The selective dissolution and repassivation of Mo promoted the second corrosion grooves parallel to stress. (C) 2012 Elsevier Ltd. All rights reserved.
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