RT info:eu-repo/semantics/article
T1 Resolution of the apparent experimental discrepancies observed between SVET and SECM for the characterization of galvanic corrosion reactions
A1 Souto, Ricardo Manuel
A1 Izquierdo Pérez, Javier
A1 Nagy, Lívia
A1 González, Sergio
A1 Nagy, Géza
K1 SVET
K1 SECM
K1 galvanic corrosion
K1 concentration distributions
K1 zinc
K1 iron
AB A new approach for studying the local distribution of anodic and cathodic sites in a corroding system using the scanning vibrating electrode technique (SVET) and scanning electrochemical microscopy (SECM) is presented. When zinc is coupled to iron, dissolution of the active metal occurs in a localized manner (e.g. pitting corrosion), allowing for cathodic sites to be developed on zinc. Local alkalization and oxygen consumption related to cathodic activity are detected above portions of the zinc surface using SECM. Anionic fluxes related to the generation of OH- ions could be measured on the zinc surface outside the corroding pit by rastering the SVET probe closer to the substrate
YR 2013
FD 2013
LK http://riull.ull.es/xmlui/handle/915/19156
UL http://riull.ull.es/xmlui/handle/915/19156
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 22-dic-2024