Fernández Domene, RM.; Blasco Tamarit, ME.; García García, DM.; García Antón, J. (2013). Passive and transpassive behaviour of Alloy 31 in a heavy brine LiBr solution. Electrochimica Acta. 95:1-11. doi:10.1016/j.electacta.2013.02.024
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/49609
Title:
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Passive and transpassive behaviour of Alloy 31 in a heavy brine LiBr solution
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Author:
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Fernández Domene, Ramón Manuel
Blasco Tamarit, María Encarnación
García García, Dionisio Miguel
García Antón, José
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UPV Unit:
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Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental
Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear
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Issued date:
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Abstract:
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The passive and transpassive behaviour of Alloy 31, a highly alloyed austenitic stainless steel (UNS N08031), has been investigated in a LiBr heavy brine solution (400 g/l) at 25 °C using potentiostatic polarisation combined ...[+]
The passive and transpassive behaviour of Alloy 31, a highly alloyed austenitic stainless steel (UNS N08031), has been investigated in a LiBr heavy brine solution (400 g/l) at 25 °C using potentiostatic polarisation combined with electrochemical impedance spectroscopy and Mott–Schottky analysis. The passive film formed on Alloy 31 has been found to be p-type and/or n-type in electronic character, depending on the film formation potential. The thickness of the film formed at potentials within the passive region increases linearly with applied potential. The film formed at transpassive potentials is thinner and more conductive than the film formed within the passive region. These observations are consistent with the predictions of the Point Defect Model for passive and transpassive films on metals and alloys
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Subjects:
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Stainless steel
,
Passive film
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Transpassivity
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EIS
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Mott–Schottky
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Electrochimica Acta. (issn:
0013-4686
)
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DOI:
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10.1016/j.electacta.2013.02.024
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.electacta.2013.02.024
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Project ID:
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Ministerio de Ciencia e Innovación (project CTQ2009-07518)
Thyssen Krupp for supplying the materials
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Thanks:
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We wish express our gratitude to the Ministerio de Ciencia e Innovacion (project CTQ2009-07518), for the economical support of this research, to Thyssen Krupp for supplying the materials, and to Dr. M. Asuncion Jaime for ...[+]
We wish express our gratitude to the Ministerio de Ciencia e Innovacion (project CTQ2009-07518), for the economical support of this research, to Thyssen Krupp for supplying the materials, and to Dr. M. Asuncion Jaime for her translation assistance.
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Type:
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Artículo
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