Electrochemical corrosion behavior of high strength carbon steel in H2SContaining alkaline brines

R. Feng, J. Beck, A. Buyuksagis, I. Wolfe, R. Cianni, M. Ziomek-Moroz, Serguei Lvov

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

3 Scopus citations

Abstract

The electrochemical corrosion behavior of high strength low alloy carbon steel API S-135 was investigated using in-situ electrochemical measurements, ex situ surface analyses, and software modeling in the alkaline brines at pH of 7.9, 10.7, and 12.4 and at four different PH2S equal to 0 kPa, 0.83 kPa, 8.3 kPa, and 69 kPa at 85 °C. Linear polarization resistance (Rpol) at steady state increased as pH increased from 7.9 to 12.4 at lower PH2S whereas Rpol decreased and then increased at higher PH2S. The fastest corrosion rate (CR) was 0.26 mm yr-1 at pH 10.7 with PH2S 69 kPa, and the slowest CR was 0.0053 mm yr-1 at pH 12.4 with PH2S 0.83 kPa. The correlation between the primary species, corrosion products, localized corrosion and Rpol were discussed. The experimental CR and corrosion products were compared with the modeling CR and Pourbaix diagram.

Original languageEnglish (US)
Title of host publicationCorrosion General Session
EditorsR. Buchheit
PublisherElectrochemical Society Inc.
Pages13-36
Number of pages24
Edition17
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - Jan 1 2015
EventSymposium on Corrosion General Session - 227th ECS Meeting - Chicago, United States
Duration: May 24 2015May 28 2015

Publication series

NameECS Transactions
Number17
Volume66
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Other

OtherSymposium on Corrosion General Session - 227th ECS Meeting
CountryUnited States
CityChicago
Period5/24/155/28/15

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Feng, R., Beck, J., Buyuksagis, A., Wolfe, I., Cianni, R., Ziomek-Moroz, M., & Lvov, S. (2015). Electrochemical corrosion behavior of high strength carbon steel in H2SContaining alkaline brines. In R. Buchheit (Ed.), Corrosion General Session (17 ed., pp. 13-36). (ECS Transactions; Vol. 66, No. 17). Electrochemical Society Inc.. https://doi.org/10.1149/06617.0013ecst