TY - JOUR
T1 - Investigations of corrosion films formed on API-X52 pipeline steel in acid sour media
AU - Hernández-Espejel, A.
AU - Domínguez-Crespo, M. A.
AU - Cabrera-Sierra, R.
AU - Rodríguez-Meneses, C.
AU - Arce-Estrada, E. M.
PY - 2010/7
Y1 - 2010/7
N2 - 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.
AB - 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.
KW - A. API-X52
KW - C. Acid sour media
KW - C. Corrosion
KW - C. Film formation
UR - http://www.scopus.com/inward/record.url?scp=77954865268&partnerID=8YFLogxK
U2 - 10.1016/j.corsci.2010.04.003
DO - 10.1016/j.corsci.2010.04.003
M3 - Artículo
SN - 0010-938X
VL - 52
SP - 2258
EP - 2267
JO - Corrosion Science
JF - Corrosion Science
IS - 7
ER -