Effect of the passive film on the crevice corrosion of stainless steels experimental and modeling approaches

T. Souier, G. Berthomé, B. Malki, B. Baroux

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We investigate the crevice corrosion resistance of bright annealed (BA) or pickled (2B) AISI 430 type industrial stainless steel sheets. An artificial crevice is electrochemically coupled to a crevice free specimen through a low impedance ammeter measuring the crevice corrosion current at rest potential. After exposure the specimen show a corroded zone around the crevice bottom and a remaining passive zone at the crevice mouth. The active area and the corrosion current are much smaller for BA than for 2B but the average crevice current density does not depend on the surface condition. Modeling ionic concentrations and flows in the crevice allows determining the transition pH between active and passive zones, giving respectively 2.6 and 2.8 for BA and 2B. It fairly accounts for the better corrosion resistance of BA surface, as observed in practice. This coupled experimental and modeling approach provides a powerful tool for further crevice corrosion investigation.

Original languageEnglish
Title of host publicationECS Transactions - Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting
Pages321-330
Number of pages10
Volume16
Edition52
DOIs
Publication statusPublished - 2008
EventCritical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting - Honolulu, HI, United States
Duration: Oct 12 2008Oct 17 2008

Other

OtherCritical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period10/12/0810/17/08

Fingerprint

Stainless steel
Corrosion
Corrosion resistance
Ammeters
Steel sheet
Current density

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Souier, T., Berthomé, G., Malki, B., & Baroux, B. (2008). Effect of the passive film on the crevice corrosion of stainless steels experimental and modeling approaches. In ECS Transactions - Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting (52 ed., Vol. 16, pp. 321-330) https://doi.org/10.1149/1.3229981

Effect of the passive film on the crevice corrosion of stainless steels experimental and modeling approaches. / Souier, T.; Berthomé, G.; Malki, B.; Baroux, B.

ECS Transactions - Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting. Vol. 16 52. ed. 2008. p. 321-330.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Souier, T, Berthomé, G, Malki, B & Baroux, B 2008, Effect of the passive film on the crevice corrosion of stainless steels experimental and modeling approaches. in ECS Transactions - Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting. 52 edn, vol. 16, pp. 321-330, Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting, Honolulu, HI, United States, 10/12/08. https://doi.org/10.1149/1.3229981
Souier T, Berthomé G, Malki B, Baroux B. Effect of the passive film on the crevice corrosion of stainless steels experimental and modeling approaches. In ECS Transactions - Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting. 52 ed. Vol. 16. 2008. p. 321-330 https://doi.org/10.1149/1.3229981
Souier, T. ; Berthomé, G. ; Malki, B. ; Baroux, B. / Effect of the passive film on the crevice corrosion of stainless steels experimental and modeling approaches. ECS Transactions - Critical Factors in Localized Corrosion 6, in Honor of Professor Shibata - 214th ECS Meeting. Vol. 16 52. ed. 2008. pp. 321-330
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