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Cavitation corrosion and repassivation kinetics of titanium in a heavy brine LiBr solution evaluated by using electrochemical techniques and Confocal Laser Scanning Microscopy

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Cavitation corrosion and repassivation kinetics of titanium in a heavy brine LiBr solution evaluated by using electrochemical techniques and Confocal Laser Scanning Microscopy

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dc.contributor.author Fernández Domene, Ramón Manuel es_ES
dc.contributor.author Blasco Tamarit, María Encarnación es_ES
dc.contributor.author García García, Dionisio Miguel es_ES
dc.contributor.author García Antón, José es_ES
dc.date.accessioned 2015-05-04T11:04:54Z
dc.date.available 2015-05-04T11:04:54Z
dc.date.issued 2011-12-30
dc.identifier.issn 0013-4686
dc.identifier.uri http://hdl.handle.net/10251/49598
dc.description.abstract The cavitation corrosion behaviour of commercially pure Grade 2 titanium in a 992 g/l LiBr solution has been investigated at 25 °C using an ultrasound device. Cavitation was found to have more influence on the anodic branch than on the cathodic branch, shifting the corrosion potential, Ecorr, and the OCP value towards more negative potentials, and increasing the corrosion current density, icorr, by six times. The repassivation kinetics of Grade 2 titanium have also been studied in the 992 g/l LiBr solution, at 25 °C and various applied potentials, using cavitation to damage the electrode surface. The repassivation kinetics have been analysed in terms of the current density flowing from the area damaged by cavitation, and the results were described by the equation i(t) = A·t−n. At potentials within the passive region, the passive film grew according to the high-field ion conduction model in which log i(t) is linearly proportional to 1/q(t). The damage generated during the potentiostatic tests has been quantified by means of Confocal Laser Scanning Microscopy es_ES
dc.description.sponsorship We wish express our gratitude to the Ministerio de Ciencia e Innovacion (Project CTQ2009-07518), for the economical support of this research, to the Generalitat Valenciana for its help in the CLSM acquisition (MY08/ISIRYM/S/100), and to Dr. M. Asuncion Jaime for her translation assistance. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Ministerio de Ciencia e Innovación (Project CTQ2009-07518) es_ES
dc.relation Generalitat Valenciana for its help in the CLSM acquisition (MY08/ISIRYM/S/100) es_ES
dc.relation.ispartof Electrochimica Acta es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Titanium es_ES
dc.subject Cavitation es_ES
dc.subject Potentiostatic es_ES
dc.subject Measurements es_ES
dc.subject Repassivation es_ES
dc.subject Confocal Laser Scanning Microscopy es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Cavitation corrosion and repassivation kinetics of titanium in a heavy brine LiBr solution evaluated by using electrochemical techniques and Confocal Laser Scanning Microscopy es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.electacta.2011.09.034
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental 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 Fernández Domene, RM.; Blasco Tamarit, ME.; García García, DM.; García Antón, J. (2011). Cavitation corrosion and repassivation kinetics of titanium in a heavy brine LiBr solution evaluated by using electrochemical techniques and Confocal Laser Scanning Microscopy. Electrochimica Acta. 58:264-275. doi:10.1016/j.electacta.2011.09.034 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.electacta.2011.09.034 es_ES
dc.description.upvformatpinicio 264 es_ES
dc.description.upvformatpfin 275 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 58 es_ES
dc.relation.senia 209334


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