Abstract
This review describes current trend in development of corrosion protective plating for applications in the automotive, buildings, aircraft and others industries. Although zinc is widely used for providing sacrificial (cathode) protection to steel in a severe corrosion environment, zinc is consumed rapidly. Recent demands for higher quality finishes, and, more specifically, longer lasting finishes, have prompted a move to alloy zinc plating. The alloying elements successfully used with zinc have been iron, nickel, tin and cobalt. In Addition, newly devised corrosion protective plating such as double layer coating, dispersion composite coating, gradient composite coating and hybride coating have been developed for improving corroson protection, and among others, polymer adhesion, low-hydrogen embrittlement and low-coefficient of friction characteristics.
