INVESTIGATION OF MODERN NANO-COMPOSITE COATINGS USED IN PASSIVE CORROSION OF METAL STRUCTURES

Abstract

Corrosion caused by the interaction of metal with the environment is one of the biggest problems affecting the country's economy. One of the easiest ways to prevent corrosion is to cover metals with paint, plastic, or wood. Several types of coatings based mainly on electrochemical principles have been adopted by corrosion scientists to prevent corrosion. Fortunately, four types of coatings are used in different ways in the metal and metallurgical industry, based on cost and effectiveness. One of the cheapest and most effective ways to prevent corrosion is to use barrier coatings such as plastic, powder, and paint. Thus, nanocomposite coatings by electrochemical deposition offer excellent scratch and corrosion resistance on metal surfaces. These coatings can be used to restore components instead of replacing them, resulting in reduced maintenance costs and inconvenience. Significant improvements in corrosion protection of steel have been reported using metal-metal matrix, metal-metal oxide matrix, metal-polymer matrix and ceramic-metal matrix nanocomposite. This review provides an overview of the work on nanocomposite coatings and re-evaluates the literature for further research in this still unproven field. Keywords: Metal Structures, passive corrosions, nano-containing coatings, polymerization, Nanotechnology