Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1468919 | Corrosion Science | 2014 | 9 Pages |
•SCC susceptibility of Fe18Cr10Mn with 0.3N, 0.6N and 0.3N0.3C was investigated in aqueous chloride environment.•SCC susceptibility decreased with N and/or C addition.•SCC resistance was related to the change in resistance to pitting corrosion and repassivation kinetics with N and/or C addition.
Stress corrosion cracking (SCC) susceptibility of austenitic Fe18Cr10Mn alloys with 0.3N, 0.6N and 0.3N0.3C was investigated in aqueous chloride environment using a slow strain rate test method. The SCC susceptibility of Fe18Cr10Mn alloys in 2 M NaCl solution at 50 °C under constant anodic potential condition decreased with increase in N content from 0.3 to 0.6 wt%, and with addition of 0.3 wt% C to the Fe18Cr10Mn0.3N alloys. The present study strongly suggested that the beneficial effects of N and C on the SCC behavior of Fe18Cr10Mn alloys would be associated with the resistance to pitting corrosion initiation and the repassivation kinetics.