SEA WATER CORRISON PERFORMANCE OF NONFERROUS METALLIC COATINGS WITHOUT AND WITH SELANT ON STEEL AND CAST IRON
有色金属涂层及其封闭层的海水腐蚀性能

Studies of the sea water corrosion performance of 9 kinds of nonferrous metallic coatings without and with sealants on carbon steel and cart iron in the static-full immersed zone,tidy zone and splashing zone distributing in the three domestic sea areas are briefly introduced,then reasons leading to their corrosion resistance are analyzed in detail based on experimental results,which show that corrosion resistance in seawater for coatings of spraying aluminum,spraying zinc,spraying aluminum-zinc with sealants,and spraying alumium+842+546 epoxy painting are prior to the others.Analysis of experimental results indicates that the corrosion resistance of coatings is well related to electrode potentials of materials in seawater,porosity of coatings,and performances of materials.