Electrodeposition of different metals and alloys has become popular for corrosion resistance and hardness in the oil and gas industry because of the major problems that persist with corrosion.  The off-shore oil rigs in the ocean are exposed to highly corrosive spray zones and low flow submerged components.  Two major alloys of copper-nickel, 90-10 and 70-30, will be evaluated for microbial corrosion protection in marine environments on a stainless steel substrate.  The 90-10 Cu-Ni coatings show good protection in more stagnant conditions, where as the 70-30 Cu-Ni coatings are employed in higher flow conditions because of the increased hardness provided by the higher concentration of nickel.  Copper alloys have been examined due to their increased feasibility, material strength, and cost as compared to pure copper coatings.  Copper and copper alloys are commonly used in marine environments to resist biofouling of materials by inhibiting microbial growth.  Electrodeposition has become a favorable technique in synthesizing coatings because of low cost, convenience, and the ability to work at low temperatures.  These coatings were evaluated for composition, hardness, and corrosion using many different types of instrumental and electrochemical techniques.  The overall corrosion resistance and hardness was improved with the film in comparison to the bare stainless steel substrate, which proves to be advantageous for the off-shore drilling environment in the oil and gas industry.

Electrodeposition of 90-10 and 70-30 Cu-Ni for microbial corrosion protection

247th National Meeting (2014)

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