...In an attempt to determine the relative importance of topography and iron corrosion products in the spatial distribution of marine microorganisms, field experiments were designed to evaluate relationships between marine bacteria and surface defects in a series of polymer coatings ( Table 1...

...Abstract Three sets of polymer coated steel were exposed to Pacific ocean water (NS) and artificial (AS) sea water. Each set had a different primer - metallic zinc, IVD-Al or phosphate. Within each set one group of samples had an epoxy coating, the other set had an additional layer of polyurethane...

... for various Al alloys. For polymer coated steel it is shown that certain parameters can be determined with impedance measurements in the high-frequency region which are related to coating delamination and a decrease of the coating resistivity. Analysis of potential and current noise has demonstrated...