RT info:eu-repo/semantics/article
T1 Investigating local corrosion processes of magnesium alloys with scanning probe electrochemical techniques: A review.
A1 Souto, Ricardo Manuel
A1 de Oliveira, Mara Cristina Lopes
A1 da Silva, Rejane Maria Pereira
A1 Antunes, Renato Altobelli
A2 Química
A2 Grupo de Electroquímica y Corrosión
Instituto de Materiales y Nanotecnología (IMN-ULL)
AB The study of corrosion of magnesium and its alloys has emerged a hot topic in the applications of lightweight structural materials. Theinherently high electrochemical activity of bare magnesium surfaces still lacks a convincing mechanism to describe the observed experimentalcharacteristics, and it has prompted the development of various types of protective coatings with the aim of slowing metal dissolution. Inrecent years, new instruments and techniques have been developed to study with spatial resolution the local corrosion processes that occur inmetallic materials in general, and for magnesium and its alloys in particular, both for bare surfaces and coated. Scanning microelectrochemicaltechniques, such as local electrochemical impedance spectroscopy (LEIS), scanning electrochemical microscopy (SECM), scanning vibratingelectrode technique (SVET), scanning ion-selective electrode technique (SIET) and scanning Kelvin probe (SKP) can provide informationabout the local electrochemical activity of metallic surfaces. In the present work, the applications of these techniques in corrosion studies ofmagnesium and its alloys are reviewed. Assessment of corrosion mechanisms, barrier properties of conventional coatings and active corrosionbehavior of self-healing coatings are examined. Limitations and future developments in this area are discussed.
YR 2022
FD 2022
LK http://riull.ull.es/xmlui/handle/915/34566
UL http://riull.ull.es/xmlui/handle/915/34566
LA en
NO Journal of Magnesium and Alloys, 10 (2022) 2997-3030. https://doi.org/10.1016/j.jma.2022.09.024
DS Repositorio institucional de la Universidad de La Laguna
RD 28-nov-2024