Tribo-corrosion of materials: Interplay between chemical, electrochemical, and mechanical reactivity of surfaces |
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Authors: | J.-P. Celis P. Ponthiaux |
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Affiliation: | a Katholieke Universiteit Leuven, Dept. MTM, Kasteelpark Arenberg 44, B-3001 Leuven, Belgium b Ecole Centrale Paris, Lab. LGPM, F-92290 Châtenay-Malabry, France |
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Abstract: | An attempt is made to link experimental potential variations noticed during tribo-corrosion tests performed at laboratory scale, with a well known mapping tool used in corrosion, namely Pourbaix diagrams also known as E-pH diagrams. Backgrounds of E-pH diagrams and electrochemical kinetics are briefly recalled. Some explanations and/or work hypotheses concerning the effect of test parameters on the potential variation during tribo-corrosion tests are presented. The complex interplay between mechanical, chemical, and electrochemical interactions during tribo-corrosion test is discussed. It demonstrates that further research towards the development of appropriate mapping tools for tribo-corrosion is most indicated. |
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Keywords: | Tribo-corrosion Thermodynamics Kinetics Mechanism Pourbaix diagram Stainless steel Stellite |
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