Surface and electrochemical behavior of HSLA in supercritical CO 2-H2O environment

M. Ziomek-Moroz, G. R. Holcomb, J. Tylczak, J. Beck, Mark Valentinovich Fedkin, Serguei Lvov

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

5 Citations (Scopus)

Abstract

General corrosion was observed on high strength low alloy carbon steel after electrochemical impedance spectroscopy experiments (EIS) performed in H2O saturated with CO2 at 50°C and 15.2 MPa. However, general and localized were observed on the same material surfaces after the EIS experiments performed in supercritical CO2 containing approximately 6100 ppmv H2O at 50°C and 15.2 MPa. The general corrosion areas were uniformly covered by the FeCO3-like phase identified by X-ray diffraction (XRD). In the area of localized corrosion, XRD also revealed FeCO3-rich islands embedded in α-iron. The energy dispersive X-ray (EDX) analysis revealed high concentrations of iron, carbon, and oxygen in the area affected by general corrosion and in the islands formed in the area of localized corrosion. The real and imaginary impedances were lower in H 2O saturated with CO2 than those in the supercritical CO2 containing the aqueous phase indicating faster corrosion kinetics in the former.

Original languageEnglish (US)
Title of host publicationCorrosion Posters (General) - 220th ECS Meeting
Pages61-70
Number of pages10
Edition24
DOIs
StatePublished - Dec 1 2012
EventCorrosion General Poster Session - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 9 2011Oct 14 2011

Publication series

NameECS Transactions
Number24
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherCorrosion General Poster Session - 220th ECS Meeting
CountryUnited States
CityBoston, MA
Period10/9/1110/14/11

Fingerprint

Corrosion
Iron
X ray diffraction
Energy dispersive X ray analysis
Experiments
Alloy steel
Electrochemical impedance spectroscopy
Carbon steel
Kinetics
Carbon
Oxygen

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Ziomek-Moroz, M., Holcomb, G. R., Tylczak, J., Beck, J., Fedkin, M. V., & Lvov, S. (2012). Surface and electrochemical behavior of HSLA in supercritical CO 2-H2O environment. In Corrosion Posters (General) - 220th ECS Meeting (24 ed., pp. 61-70). (ECS Transactions; Vol. 41, No. 24). https://doi.org/10.1149/1.3692436
Ziomek-Moroz, M. ; Holcomb, G. R. ; Tylczak, J. ; Beck, J. ; Fedkin, Mark Valentinovich ; Lvov, Serguei. / Surface and electrochemical behavior of HSLA in supercritical CO 2-H2O environment. Corrosion Posters (General) - 220th ECS Meeting. 24. ed. 2012. pp. 61-70 (ECS Transactions; 24).
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Ziomek-Moroz, M, Holcomb, GR, Tylczak, J, Beck, J, Fedkin, MV & Lvov, S 2012, Surface and electrochemical behavior of HSLA in supercritical CO 2-H2O environment. in Corrosion Posters (General) - 220th ECS Meeting. 24 edn, ECS Transactions, no. 24, vol. 41, pp. 61-70, Corrosion General Poster Session - 220th ECS Meeting, Boston, MA, United States, 10/9/11. https://doi.org/10.1149/1.3692436

Surface and electrochemical behavior of HSLA in supercritical CO 2-H2O environment. / Ziomek-Moroz, M.; Holcomb, G. R.; Tylczak, J.; Beck, J.; Fedkin, Mark Valentinovich; Lvov, Serguei.

Corrosion Posters (General) - 220th ECS Meeting. 24. ed. 2012. p. 61-70 (ECS Transactions; Vol. 41, No. 24).

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

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Ziomek-Moroz M, Holcomb GR, Tylczak J, Beck J, Fedkin MV, Lvov S. Surface and electrochemical behavior of HSLA in supercritical CO 2-H2O environment. In Corrosion Posters (General) - 220th ECS Meeting. 24 ed. 2012. p. 61-70. (ECS Transactions; 24). https://doi.org/10.1149/1.3692436