期刊
SURFACE AND INTERFACE ANALYSIS
卷 38, 期 4, 页码 252-254出版社
WILEY
DOI: 10.1002/sia.2149
关键词
zinc; coating; corrosion; SEM; XRD
The 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 (C) 2006 John Wiley & Sons, Ltd.
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