Electrochemical analysis of the corrosion resistance of annealed steel with nickel coating in marine environment simulations: chronoamperometric and voltametric study

Abstract

This study conducts a comprehensive investigation into the corrosion resistance of annealed steel wire, commonly used in marine construction, emphasizing its importance for the material's durability and functionality in such applications. An innovative approach was implemented by applying a Nickel (II) Chloride Hexahydrate coating through electrodeposition. This process was meticulously adjusted, varying critical parameters such as exposure time and electrical potential. To mimic marine corrosive conditions, a Sodium Chloride solution was used, allowing for a detailed comparative analysis between coated and uncoated samples. The evaluation was based on rigorous quantitative measurements of the wire's surface state and corrosion potential, using TAFEL curves for precise interpretation. The findings empirically demonstrated that the coating significantly enhances corrosion resistance, markedly outperforming untreated steel. These results reinforce the proposition of nickel electrodeposition as an effective and viable strategy for corrosion protection in marine industrial applications.