An Experimental Evaluation of Mechanical Properties and Microstructure Change on Thin-Film–Coated AISI-1020 Steel

Abstract

Low carbon steel AISI1020, which is a widely accepted material for industrial applications, was surface coated, and its role in enhancing endurance strength and other mechanical properties was investigated for improving performance. In this work, an experimental investigation on the effect of different types of coating processes on surface roughness, surface hardness, and endurance strength was conducted. Thin films were deposited over the surface of standard specimens by galvanizing, electroplating, and spraying techniques. Chromium, zinc, nickel, and tin were used as the coating material. It was found that optimum surface roughness, hardness, and endurance strength exist for zinc coating compared with the others under investigation. The surface roughness, hardness, and endurance strength are associated by bonding strength and a chemical bond between parent metal and coated surface.

Degradation behavior of mechanical properties of galvanized steel exposed to the wind and sand environment

“…Nowadays the galvanization treatment has been widely used for the preservation of steels [10–12]. In the galvanization process, the descaled steel is immersed in a liquid zinc solution of about 450 °C to creat a zinc layer that provides corrosion protection for the steels on the surface of the steel [13–16].…”