Galvanic corrosion behaviour of aluminium 3004 and copper in tropical marine atmosphere

摘要: The galvanic corrosion behaviour of aluminium 3004 and copper with different area ratios were studied in the tropical marine atmosphere at Tuticorin harbour over a period 426 days. A Al: Cu, 1:1, 1:2, 1:4, 1:8, 2:1, 4:1 & 8:1. metals was terms relative increase rate due to coupling copper, decrease aluminium, susceptibility pitting owing copper. potential current system monitored. Pits dimensions ranging from mild etchings perforations experienced on borders surfaces interface contact weathering parameters environmental pollutants which have major role influencing also products resulting analysed using XRD has been highlighted pit depth, size density pit, high resolution microscope.