CORROSION RESISTANCE OF SUPERSONIC ARC SPRAYED ALUMINUM COATINGS
超音速电弧喷涂铝涂层的耐蚀特性

Microstructure, bond strength and powder size of supersonic ARC sprayed Al coatings were investigated by OM, SEM , Vickers microhardness test, tensile bond strength test and salt spray test. Experiment results showed that aluminum coatings by supersonic ARC spraying have better corrosion resistance, higher microhardness, higher bond strength and smaller powder size as well as lower porosity than that by conventional ARC spraying.