Sherardizing process is a common industrial surface treatment technology that provides protection against corrosion by forming a zinc-iron based layer on steel surfaces by thermo diffusion mechanism. Sherardizing is much more reliable, environmentally friendly and cost effective than many paint and zinc based coatings. Sherardizing is in the interest of many industries with the advantages it provides. For this reason, it is very important to understand and characterize the properties of sherardized surfaces. In this study, the cross-sectional and top surface morphology of the coating was investigated by scanning electronic microscopy (SEM). The thickness of coating were analyzed using nondestructive test methods. Surface properties are discussed and wetting angle measurements were carried out and analyzed. Sherardizing process provides a very strong and long-term protection against corrosion and wear. It is an indispensable surface treatment especially for fasteners and bolts that require high strength and service life.
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