Effects of mechanical forming on the corrosion of electrogalvanised steel

Abstract

This paper presents a morphological and electrochemical characterisation of electrogalvanised steel (EG) and phosphated electrogalvanised steel (PEG) after plastic deformation. Previous investigations focused on the deformation of a coil-coating with the same substrates. The effect of forming on the complete system is known but not its influence on the individual layers. The study now reported used SEM to analyse the surface changes of EG and PEG after uniaxial and biaxial deformation and EIS and SVET to characterise the corrosion of the samples when immersed in 0.1 M NaCl. (C) 2012 Elsevier Ltd. All rights reserved