Surface modification of mild steel by co-deposition using Zn-ZnO-Ant hill particulate composite coating in simulated sea water

Abstract

Naval ships are constructed with mild steel. Corrosion is a major concern in a marine environment. This particular type of material degradation has recently received more attention by the marine industry. Effort is make my researchers to combat this problem. In this work, co-deposition of Zn-ZnO-Ant hill powder composite coating on mild steel was reported with the view to combat this problem. The Ant hill powder was varied from 0 to 25 g. A 10 mL of orange juice was used as an organic additive. The coating thickness, surface roughness, microstructure, hardness values, wear rate and potentiodynamic polarization in simulated sea water were determined. The addition of orange juice as an additive changed the morphological and texture of the coating, and the hardness values, wear and corrosion rate were enhanced. Maximum corrosion protection efficiency of 92.86% and 94.41% was obtained at Zn-ZnO-25gAnt hill and Zn-ZnO-25gAnt hill + orange juice, respectively. The work has established that Zn-ZnO-Ant hill powder composite coating on mild steel is promising.

Understanding the multifaceted incorporation of a Zn-maize cob nanoparticle composite coating of mild steel: anti-wear, anti-corrosion, and oxidation resistance

“…This could be attributed to the fact that the MCAp covered the substrate surface, which led to rises in the high hardness values as a result of dispersive strengthening, grain rening, strain hardening, and a rise in dislocation density. A similar observation was observed in the work of Aigbodion et al 1 A 369 and 211HB were obtained as the hardness values of the coated and substrate samples respectively; this corresponded to an increase in hardness of 74.89%. A rise in hardness levels was previously observed by Zheng et al 12 3.6 Analyses electrochemical corrosion Fig.…”

“…A similar observation has been previously reported on the materials' ability to self-lubricate. 1 The lubrication caused by the addition of MCAp, as demonstrated in the SEM image, helps reduce wear loss.…”

“…In recent time the development of sustainable coating materials has been a study in the research community worldwide, many waste materials has been successful used as a novel coating materials for mild steel, among that researched are, Aigbodion et al 1 used ant hill to developed a protective coating for mild steel, Aigbodion 2 developed a protective coating using rice husk ash nanoparticle, Aigbodion and Akinlabi 4 studied zinc-eggshell particles as anti-corrosion coating of mild steel, Adams et al 18 studied the wear and hardness values of CaCO 3 obtained from eggshell for coating of mild steel, Adams et al 19 used oyster shell to developed a protective coating of mild steel. It has also been shown that silica and silicate materials offer potentially intriguing anti-corrosive qualities to mild steel by the formation of strong SiO 2 passive thin film at the metal interfaces.…”

“…The inadequacies of the surface features of mild steel have been addressed by protective coatings consisting of hard chromium and cadmium. 1 Despite the fact that hard chromium and cadmium coatings have exceptional qualities like low cost and strong corrosion resistance, the electrodeposition process for these coatings is strictly regulated due to the presence of signicant risks to both human health and the environment. 3,4 According to Popoola et al, 5 cyanide plating solutions, which are very toxic to both human and animal life, are oen used in cadmium plating.…”

Morphology and properties of composite coating on mild steel: effect of bath temperature and snail shell weight composition

“…They find out that thermal stable of the coating was obtained at 900°C with improved corrosion resistance. Aigbodion et al (2018) reported on co-deposition of Zn-ZnO-Ant hill powder composite coating on mild steel. The Ant hill powder was varied from 0 g to 25 g. A 10 mL of orange juice was used as an organic additive.…”