Skip to Main content Skip to Navigation
Journal articles

A study by electrochemical impedance spectroscopy and surface analysis of corrosion product layers formed during CO2 corrosion of low alloy steel

Abstract : In the following research, electrochemical and surface analysis techniques are used to define the main contributing factor to the protectiveness offered by a scale formed at high temperature and pH under CO 2 saturated conditions. At 80°C and pH 6.6, trace amounts of a magnetite (Fe 3 O 4) phase was identified at certain locations beneath a more dominant iron carbonate (FeCO 3) film. Furthermore, over time, the evolution of the corrosion product layer towards a very low porosity results in a "diffusion barrier" that is indicated by a positive shift in the open circuit potential and is considered key to corrosion protection.
Document type :
Journal articles
Complete list of metadatas

Cited literature [34 references]  Display  Hide  Download

https://hal-ifp.archives-ouvertes.fr/hal-02864432
Contributor : Jean Kittel <>
Submitted on : Thursday, June 11, 2020 - 9:50:25 AM
Last modification on : Friday, November 6, 2020 - 4:57:02 AM

Annex

  •  Cor-Sci_2020_post-print.pdf    Embargoed until : 2022-04-25 

Identifiers

Collections

Citation

Rehan de Motte, Edoardo Basilico, Rémy Mingant, Jean Kittel, Francois Ropital, et al.. A study by electrochemical impedance spectroscopy and surface analysis of corrosion product layers formed during CO2 corrosion of low alloy steel. Corrosion Science, Elsevier, 2020, 172, pp.108666. ⟨10.1016/j.corsci.2020.108666⟩. ⟨hal-02864432⟩

Share

Metrics

Record views

3

Files downloads

2