AN EXPERIMENTAL STUDY OF FORMATION ABILITY OF CORROSION PROTECTION COATING ON RUST STEEL PLATE SURFACES BY APPLYING COLD SPRAY TECHNIQUE

Abstract

Bridge girder ends and high-strength bolts are one of the major weak points against corrosion. Therefore, it is necessary to develop the anticorrosion technique for them. In this study, we fo- cused on Cold Spray technique, which can form a metallic film, as a corrosion protection film-forming method. Cold Spray technique with mixed particles of zinc and alumina particles was applied to rust steel plate surfaces. In order to evaluate the abilities of abrasive blast-cleaning and anticorrosion property and to clarify its adhesion mechanism, cross-section observation by SEM, adhesion and accelerating corrosion tests were carried out.