New developed for generating superhydrophobic surface modification on mild steel for corrosion protection

Abstract

The synergism effect of sodium tartrate and Zn2+ binary inhibitor system on the corrosion inhibition efficiency of mild steel in an potable water medium containing was analyzed by means of gravimetric and electrochemical spectroscopic measurements. The effect of weight loss method and immersion time on the corrosion behavior of mild steel has also been studied. The scanning electron microscopic (SEM) images showed that the roughness and the deep cracks of the metal surface are reduced significantly by the inhibitor system. Results indicated that the formulation acted as anodic inhibitor. Adsorption of used inhibitor lead to a decrease in the double layer capacitance and an increase in the charge transfer resistance and confirm protective layer by SEM, EDX, AFM and FT-IR. Simple and novel binary inhibitors approach was developed for generating superhydrophobic surface modification of mild steel. Interestingly, Water droplets falling on the leaves bead up and roll off, mild steel immersed in potable water in the presence of binary inhibitor system (sodium tartrate and Zn2+) was attempted to create superhydrophobic surfaces. However, the water contact angle in presence of binary inhibitor system was found to be 152°±4°, whereas in the case of mild steel, it was 55°±2°. A detailed description of the surface-modified superhydrophobic in potable water on mild steel is presented in this article.

Keywords

• Corrosion protection
• Water contact angle
• Electrochemical studies and surface studies