Papers by Gopalan Subramanian
Journal of Marine Science and Application, 2014
The galvanic corrosion behaviour of aluminium 3004 and copper with different area ratios were stu... more 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 of 426 days.
Galvanic interactions of aluminium 3004 and alpha brass in tropical marine atmosphere
Journal of Marine Science and Application
The galvanic corrosion behaviour of aluminium 3004 - alpha brass with different area ratios was s... more The galvanic corrosion behaviour of aluminium 3004 - alpha brass with different area ratios was studied in the tropical marine atmosphere at Tuticorin harbour over a period of 426 days. The area ratios, viz. AAluminium : A alpha brass, studied were 0.125, 0.25, 0.5, 1, 2, 4 & 8. The galvanic corrosion behaviour of the metals was studied in terms of the relative increase in the corrosion rate of aluminium due to galvanic coupling with brass, the relative decrease in the corrosion rate of alpha brass due to galvanic coupling with aluminium, and the susceptibility of aluminium to pitting owing to galvanic coupling with alpha brass. The galvanic potential and galvanic current of the system were monitored. Pits of different dimensions ranging from mild etchings to perforations were experienced on the borders and the surfaces of the interface of aluminium in contact with brass. The weathering parameters and the environmental pollutants which played major role in influencing the galvan...
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Papers by Gopalan Subramanian