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Electrochemical studies of anodic dissolution of mild steel in a carbonate-bicarbonate buffer under erosion-corrosion conditions

Zhou, S and Stack, M M and Newman, R C (1996) Electrochemical studies of anodic dissolution of mild steel in a carbonate-bicarbonate buffer under erosion-corrosion conditions. Corrosion Science, 38 (7). pp. 1071-1084. ISSN 0010-938X

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Abstract

A Rotating Cylinder Electrode (RCE) system has been used to determine the corrosion kinetics of mild steel in the active dissolution potential range under erosion-corrosion conditions. The hydrodynamics of the rotating cylinder electrode were characterized by the mass transfer controlled oxygen reduction reaction on a copper electrode. The anodic dissolution current was measured at various potentials and velocities in de-aerated 0.5M NaHCO3 + 0.5M Na2CO3 solution, with or without the addition of 300 g/l of 100 mu m alumina. The results show that anodic dissolution processes in this system are under mass transfer control in turbulent flow conditions. The anodic dissolution rate increases significantly with the introduction of particles, owing to an increase of mass transfer coefficient and removal of corrosion deposits on the electrode surface.

Item type: Article
ID code: 34415
Keywords: mild steel, erosion, RDE/RCE, rotating cylinder electrode, slurry pipelines, mass-transfer, iron, passivation, electrodissolution, Mechanical engineering and machinery, Mining engineering. Metallurgy, Chemistry, Materials Science(all), Chemical Engineering(all), Chemistry(all)
Subjects: Technology > Mechanical engineering and machinery
Technology > Mining engineering. Metallurgy
Science > Chemistry
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 18 Oct 2011 10:14
    Last modified: 05 Sep 2014 11:55
    URI: http://strathprints.strath.ac.uk/id/eprint/34415

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