- -

Study of the biotribocorrosion behaviour of titanium biomedical alloys in simulated body fluids by electrochemical techniques

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Study of the biotribocorrosion behaviour of titanium biomedical alloys in simulated body fluids by electrochemical techniques

Show simple item record

Files in this item

dc.contributor.author Dimah, Mohammed Kareem es_ES
dc.contributor.author Devesa Albeza, Francisco es_ES
dc.contributor.author Amigó Borrás, Vicente es_ES
dc.contributor.author Igual Muñoz, Anna Neus es_ES
dc.date.accessioned 2014-06-02T10:04:06Z
dc.date.issued 2012-07-30
dc.identifier.issn 0043-1648
dc.identifier.uri http://hdl.handle.net/10251/37875
dc.description.abstract The corrosion and wear behaviour of wrought titanium alloys (Ti-Grade 2, Ti6Al4V and Ti6Al4V-ELI) immersed in phosphate buffered solution (PBS) and phosphate buffered solution with bovine serum albumin (PBS+ BSA) has been analysed by electrochemical techniques and surface microscopy. The influence of the alloy composition and microstructure on the tribo- electrochemical behaviour was analysed by potentiodynamic studies and potentiostatic tests (applied electrochemical potentials) under sliding conditions. Plastic deformation and third bodies were observed at the end of the tests by optical, confocal and scanning electron microscopy (SEM). Although the degradation mechanism was the same in all the studied alloys, wear debris was found to be material and solution chemistry dependent. alpha + beta phase Ti6Al4V alloy shows lower wear damage than the alpha phase Ti-Grade 2 alloy. Main effect of chemical composition and microstructure of the alloy was found in the wear accelerated corrosion, which is twice in the case of the Ti-Grade 2. Effect of the repassivation time and passive film growth on the wear behaviour of the Ti6Al4V-ELI was also analysed by carrying out intermittent tests. Wear coefficient increases when rest time between sliding cycles increases due to the growth of the passive films during the pause periods. BSA adsorbs on the metallic surface thus reducing the repassivation kinetics and therefore hindering the effect of pause periods during sliding. (C) 2012 Elsevier B.V. All rights reserved. es_ES
dc.description.sponsorship We wish to express our gratitude to the Universidad Politecnica de Valencia for the financial support (Ref. 279). en_EN
dc.format.extent 10 es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Universitat Politècnica de València (Ref.279) es_ES
dc.relation.ispartof Wear es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bovine serum albumin es_ES
dc.subject Tribocorrosion es_ES
dc.subject Sliding wear es_ES
dc.subject Titanium alloys es_ES
dc.subject Biomedical es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Study of the biotribocorrosion behaviour of titanium biomedical alloys in simulated body fluids by electrochemical techniques es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1016/j.wear.2012.04.014
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials 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 Dimah, MK.; Devesa Albeza, F.; Amigó Borrás, V.; Igual Muñoz, AN. (2012). Study of the biotribocorrosion behaviour of titanium biomedical alloys in simulated body fluids by electrochemical techniques. Wear. 294-295(1):409-418. doi:10.1016/j.wear.2012.04.014 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.wear.2012.04.014 es_ES
dc.description.upvformatpinicio 409 es_ES
dc.description.upvformatpfin 418 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 294-295 es_ES
dc.description.issue 1 es_ES
dc.relation.senia 235350


This item appears in the following Collection(s)

Show simple item record