| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470943 | Corrosion Science | 2010 | 10 Pages |
Abstract
Corrosion films formed by voltammetry using different switching potentials and by immersion on API-X52 pipeline steel in simulated acid sour media (NACE ID182) have been characterized using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Linear Polarization and Electrochemical Impedance Spectroscopy (EIS) techniques. XRD and EDS analysis showed that the films are mainly composed of sulphide compounds (mackinawite, troilite, marcasite and pyrite) as well as iron oxides, as steel damage increases. Across SEM micrographs the corrosion films formed by potentiodynamic and immersion tests are very similar, covering most of the steel. Polarization and EIS results corroborate poor behavior against corrosion.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
A. Hernández-Espejel, M.A. Domínguez-Crespo, R. Cabrera-Sierra, C. Rodríguez-Meneses, E.M. Arce-Estrada,