AC impedence spectroscopy as a technique for investigating corrosion of iron in hot flowing Bayer liquors
Lu, Q. and Stack, M.M. and Wiseman, C.R. (2001) AC impedence spectroscopy as a technique for investigating corrosion of iron in hot flowing Bayer liquors. Journal of Applied Electrochemistry, 31 (12). pp. 1373-1379. ISSN 0021-891X (http://dx.doi.org/10.1023/A:1013824010279)
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The flow-induced corrosion of iron, in spent Bayer liquor at high temperatures, was investigated using a rotating cylinder electrode (RCE) in an autoclave facility. A temperature range of 100-230 °C and equivalent pipe velocities in the range 0.84-3 m s-1 were used. AC impedance technique was applied to monitor in situ the entire corrosion process. Corrosion rates measured by a.c. impedance expressed as average 1/R p were in good agreement with those obtained by weight loss measurements. The results suggest that a.c. impedance is a suitable method to monitor the corrosion process of steels exposed to flowing Bayer liquor at higher temperatures.
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Item type: Article ID code: 6278 Dates: DateEvent2001PublishedSubjects: Technology > Mechanical engineering and machinery
Technology > Mining engineering. Metallurgy
Science > ChemistryDepartment: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Strathprints Administrator Date deposited: 10 Jul 2008 Last modified: 08 Apr 2024 15:43 URI: https://strathprints.strath.ac.uk/id/eprint/6278