RT info:eu-repo/semantics/article
T1 Development of an Al3+ ion-selective microelectrode for the potentiometric microelectrochemical monitoring of corrosion sites on 2098-T351 aluminum alloy surfaces 
Autores: 	R.M.P. da Silva, J. Izquierdo, M.X. Milagre, J.V.S. Araujo, R.A. Antunes, R.M. Souto, I. Costa
A1 Souto, Ricardo Manuel
A1 Da Silva, Rejane Maria P.
A1 Izquierdo Pérez, Javier
A1 Milagre, Mariana X.
A1 Araujo, Joao Victor de S.
A1 Antunes, Renato A.
A1 Costa, Isolda
A2 Química
A2 Departamento de Química
Grupo de Electroquímica y Corrosión
Instituto de Materiales y Nanotecnología
AB The development of heterogeneous electrochemical activity in the weldedzones of aluminum alloy 2098-T351 by friction stir welding (FSW) associatedwith the formation of a near-surface deformed layer (NSDL) upon exposure toan aqueous chloride-containing solution was characterized using scanningelectrochemical microscopy (SECM) in potentiometric operation. A solid-contactMg2+ ion-selective microelectrode allowed in situ monitoring of the corrosionreactions sites for magnesium dissolution from different zones of the FSW weldupon exposure to a chloride-containing aqueous environment. In this way,localized corrosion reactions developing in the galvanically coupled joint/heataffected zones (WJ/HAZ) of the weld were detected and imaged with spatialresolution. The most active domains for local Mg2+concentrations wereassociated with the HAZ of the retreating side (RS), and these corresponded toMg oxidation from the Mg-enriched oxide bands in NSDL.
YR 2022
FD 2022
LK http://riull.ull.es/xmlui/handle/915/29152
UL http://riull.ull.es/xmlui/handle/915/29152
LA en
NO Rejane Maria P. da Silva , Javier Izquierdo , Mariana X. Milagre ,Joao Victor de S. Araujo , Renato A. Antunes , Ricardo M. Souto , Isolda Costa , Electrochemical ˜characterization of alloy segregation in the near-surface deformed layer of welded zones ofan Al−Cu−Li alloy using scanning electrochemical microscopy, Electrochimica Acta (2022), doi:https://doi.org/10.1016/j.electacta.2022.140873
DS Repositorio institucional de la Universidad de La Laguna
RD 27-dic-2024