COPPER - NICKEL ALLOYS FOR MARINE AQUA CULTURAL ENGINEERING

Abstract

Engineering developments, problems of marine corrosion, fouling and practical
innovative applications of copper-nickel alloys in comparison with other materials for marine aquacultural engineering are presented. Coefficient of drag and hydrodynamic force acting on nylon and polyethylene net enclosures have shown a four-fold increase of force in four months at the Cochin Harbour due to fouling. Corrosion behaviour of copper-nickel and other copper base alloys are also presented. Effects of copper additions to culture water are reviewed.