1. Formability of organic coatings—an electrochemical approach
- Author
-
Bastos, A.C., Ostwald, C., Engl, L., Grundmeier, G., and Simões, A.M.
- Subjects
- *
ZINC plating , *ELECTROCHEMICAL analysis , *IMPEDANCE spectroscopy , *SURFACES (Technology) - Abstract
Coil-coated samples of electrogalvanised steel were submitted to uniaxial, biaxial and plane strain of various magnitudes and tested by electrochemical impedance spectroscopy (EIS). A good correlation was encountered between the coating resistance and the equivalent plastic strain. Microscopic inspection of the coatings suggests that the decrease in the coating resistance is a consequence of defects originated by cracks on the phosphate and by loss of adhesion at the polymer/pigment interface. [Copyright &y& Elsevier]
- Published
- 2004
- Full Text
- View/download PDF