The Influence of Steel Substrate Surface Relief on Fe-Zn Alloy Coating in Hot-Dip Galvanization
Keywords:hot – dip galvanize, relief, Fe-Zn alloy
The influence of steel substrate surface relief on Zn coating in hot-dip galvanization is analyzed in this paper. Four
different steels substrate surfaces, such as: normal substrate relief; sandblasted substrate; rough polished and fine
polished substrates have been used for surface roughness analysis. Scanning Electron Microscope images of sample
cross-section showed Fe-Zn alloy coating phase’s thickness and structure. X-ray diffraction pattern indicate that some
Zn and phases crystals orientation is different in the samples. This experiment shows that the steel’s relief is rougher
when Zn coating is thicker, but Fe-Zn phase’s remains unchanged.
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