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Studies of CO2 corrosion product scales using electrochemical impedance spectroscopy and surface characterisation techniques
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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
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Corrosion : journal of science and engineeringVolume
54Issue
10Pagination
835 - 842Publisher
National Association of Corrosion EngineersLocation
Houston, Tex.Publisher DOI
ISSN
0010-9312Language
engPublication classification
C1.1 Refereed article in a scholarly journalUsage metrics
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