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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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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

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Abstract

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.