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Electrochemical impedance spectroscopy and surface characterization techniques to study carbon dioxide corrosion product scales
journal contribution
posted on 1998-01-01, 00:00 authored by B Kinsella, Mike Yongjun TanMike Yongjun Tan, S BaileyElectrochemical impedance spectroscopy (EIS) was used to study carbon dioxide (CO2) corrosion product scales and their effects on further CO2 corrosion. Objectives were to determine the suitability of EIS for studying corrosion scales and to investigate the influence of environmental factors on scale formation. EIS provided useful information about protective abilities and electrochemical properties of corrosion scales. CO2 corrosion scales formed at high-temperature and pressure provided better protection than those formed at low-temperature and pressure. The level of protection of the scale formed at higher temperature and pressure increased with exposure time. EIS results were compared with coupon weight-loss measurements. Scales were analyzed using a combination of Fourier transform infrared (FTIR) analysis, x-ray diffraction (XRD), and electron microscopy.
History
Journal
CorrosionVolume
54Issue
10Pagination
835 - 842Publisher
NACE InternationalLocation
Houston, Tex.ISSN
0010-9312eISSN
1938-159XLanguage
engPublication classification
C1.1 Refereed article in a scholarly journalUsage metrics
Categories
No categories selectedKeywords
Carbon dioxide corrosionCorrosion kineticsElectrochemical impedance spectroscopyFourier transform infrared analysisProduct scaleScanning electron microscopySurface characterizationWeight-loss measurementX-ray diffractionScience & TechnologyTechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringMaterials ScienceSTEEL