EXPOSURE TEST OF METAL SPRAYED AND PAINTED STEEL SPECIMENS ON SEAWALL

Abstract

 With the marine steel structure, the corrosion damage of steel materials by the seawater and degradation by the marine biofouling become the problem. In this exposure test, we made a test piece by metal spraying with Al-5% Mg alloy and copper materials, and thick anticorrosion coat. It was exposed installed on seawall of total six years. As a result, within this experiment parameters was not provided the coated specifications the anti-biofouling effect with more than two years. However, the knowledge about anti-biofouling and corrosion prevention by metal spraying with Al-5% Mg alloy and copper materials, and thick anticorrosion coat was obtained. We report a result of exposure test for the purpose of contributing to the development of the anti-biofouling and corrosion prevention coating specifications in the future marine steel structure.