Abstract
AbstractThe corrosion behavior of zinc pack coatings was examined with X‐ray diffraction (XRD) and scanning electron microscopy (SEM) and it was compared with the performance of the zinc coatings formed with hot dipping. The examined samples were exposed in a salt spray chamber (SSC) for different periods of time starting from 24 h up to ten days. This investigation showed that the main corrosion products were Zn‐ and Fe‐hydrated chlorides and oxides, while a stress corrosion mechanism controlled the pack corrosion. By contrast, the hot‐dipped coatings are uniformly corroded, while pitting corrosion and internal oxidation are also possible. Copyright © 2006 John Wiley & Sons, Ltd.
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