RT info:eu-repo/semantics/article
T1 Self-healing processes in coil coated cladding studied by the scanning vibrating electrode
A1 Souto, Ricardo Manuel
A1 Normand, B.
A1 Takenouti, H.
A1 Keddam, M.
K1 Defective organic coating
K1 Self-healing effect
K1 Local current density
K1 Scanning vibrating electrode technique
K1 Coil-coated steel
AB The ability of the zinc layer in coil-coated cladding to protect the underlying metal substrate exposed to the environment through a sub-centimetre circular defect was established by using the scanning vibrating electrode technique (SVET). The onset of electrochemical corrosion is observed through the development of local anodes and cathodes in the defective system, with the formation of soluble zinc species. The dissolution process is maintained until a sufficiently high concentration is attained by the metal ions, and their subsequent precipitation inside the holiday blocks the defect as to hinder further corrosion. A self healing effect was thus observed. The role of zinc salts was confirmed by SEM and EDX observations
YR 2010
FD 2010
LK http://riull.ull.es/xmlui/handle/915/19117
UL http://riull.ull.es/xmlui/handle/915/19117
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 25-nov-2024