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Elsevier, Electrochimica Acta, (124), p. 3-8

DOI: 10.1016/j.electacta.2013.08.186

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Tribo-electrochemical impedance: A new technique for mechanistic study in tribocorrosion

Journal article published in 2014 by Michel Keddam, Pierre Ponthiaux, Vincent Vivier ORCID
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This paper is available in a repository.

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Abstract

On the basis of a classical model of triboelectrochemistry, a new approach is proposed based on an impedance ratio of a mechanical perturbation and an electrochemical response. Theoretical derivation, experimental setup and application to a passive stainless steel in a borate solution are presented. Transient characteristics yielded by the technique, associated to a permanent tribological regime, are found to obey a two-time-constant law. They are discussed and compared to the global repassivation transients of the material after switching off the abrasive friction.