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Influence of the sliding velocity and the applied potential on the corrosion and wear behavior of HC CoCrMo biomedical alloy in simulated body fluids

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Influence of the sliding velocity and the applied potential on the corrosion and wear behavior of HC CoCrMo biomedical alloy in simulated body fluids

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dc.contributor.author Alonso Gil, Roberto es_ES
dc.contributor.author Igual Muñoz, Anna Neus es_ES
dc.date.accessioned 2018-06-07T04:21:00Z
dc.date.available 2018-06-07T04:21:00Z
dc.date.issued 2011 es_ES
dc.identifier.issn 1751-6161 es_ES
dc.identifier.uri http://hdl.handle.net/10251/103482
dc.description.abstract [EN] The corrosion and tribocorrosion behavior of an as-cast high carbon CoCrMo alloy immersed in phosphate buffered solution (PBS) and phosphate buffered solution with bovine serum albumin (PBS + BSA) have been analyzed by electrochemical techniques and surface microscopy. After the electrochemical characterization of the alloy in both solutions, the sample was studied tribo-electrochemically (by open circuit potential, OCP measurements, potentiodynamic curves and potentiostatic tests) in a ball-on-disk tribometer rotating in different sliding velocities. The influence of solution chemistry, sliding velocity and applied potential on the corrosion and tribocorrosion behavior of the CoCrMo alloy has been studied. Anodic current density increases with sliding velocity but wear rate does not change at an applied anodic potential; on the other hand, BSA modifies the wear debris behavior (by agglomerating the debris formed by mechanical removal of particles) thus increasing the mechanical wear volume. Under cathodic conditions, cathodic current density also increases during mechanical contact while the wear rate decreases with sliding velocity and BSA lubricates the contact thus reducing the total wear volume with respect to the non-containing BSA solution. The work shows how the electrode potential critically affects the corrosion and tribocorrosion rates by increasing the wear coefficients at applied anodic potentials due to severe wear accelerated corrosion. (C) 2011 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship We wish to express our gratitude to the Universidad Politecnica de Valencia, for the economic support to carry out this research.
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of the Mechanical Behavior of Biomedical Materials es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Thibocorrosion es_ES
dc.subject Electrochemistry es_ES
dc.subject Three-body abrasion es_ES
dc.subject Albumin es_ES
dc.subject Sliding velocity es_ES
dc.subject Sliding wear es_ES
dc.subject Potential es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Influence of the sliding velocity and the applied potential on the corrosion and wear behavior of HC CoCrMo biomedical alloy in simulated body fluids es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jmbbm.2011.07.008 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation Alonso Gil, R.; Igual Muñoz, AN. (2011). Influence of the sliding velocity and the applied potential on the corrosion and wear behavior of HC CoCrMo biomedical alloy in simulated body fluids. Journal of the Mechanical Behavior of Biomedical Materials. 4(8):2090-2102. doi:10.1016/j.jmbbm.2011.07.008 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.jmbbm.2011.07.008 es_ES
dc.description.upvformatpinicio 2090 es_ES
dc.description.upvformatpfin 2102 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 4 es_ES
dc.description.issue 8 es_ES
dc.identifier.pmid 22098909
dc.relation.pasarela S\211436 es_ES
dc.contributor.funder Universitat Politècnica de València


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