Electrodeposition of Cu-Ni Incorporated with Layered Silicates for Corrosion Protection

Electrodeposition of different metals and alloys is popular for corrosion resistance because of the major problems that persist with corrosion. Two major alloys of Cu-Ni, 70-30 and 90-10, have been evaluated for corrosion protection on a stainless steel substrate. Copper and copper alloys are commonly used in marine environments to resist biofouling of materials by inhibiting microbial growth. The results show that the incorporated montmorillonite in the Cu-Ni matrix at 0.05% (238.1-297.5 k Omega cm(2)) and 0.1% (138.2-102.9 k Omega cm(2)) improved the overall corrosion resistance versus the pure alloy film (71.9-68.5 k Omega cm(2)). These coatings hold promise for the off-shore drilling environment in the oil and gas industry.