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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
dc.contributor.author	Blasco-Tamarit, E.
dc.contributor.author	García-García, D.M.
dc.contributor.author	Garcia-Anton, Jose
dc.date.accessioned	2021-01-08T11:37:25Z
dc.date.available	2021-01-08T11:37:25Z
dc.date.issued	2011
dc.identifier.citation	Fernández Domene, Ramón Manuel Blasco-Tamarit, E. García-García, D.M. García-Antón, Jose 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
dc.identifier.uri	https://hdl.handle.net/10550/76910
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.
dc.language.iso	eng
dc.relation.ispartof	Electrochimica Acta, 2011, vol. 58, p. 264-275
dc.subject	Titani
dc.subject	Electroquímica
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
dc.type	journal article	es_ES
dc.date.updated	2021-01-08T11:37:25Z
dc.identifier.doi	10.1016/j.electacta.2011.09.034
dc.identifier.idgrec	140747
dc.rights.accessRights	open access	es_ES