Galvanic corrosion performance of high strength copper-nickel alloys in seawater

Barik, R.C., Wharton, J.A., Wood, R.J.K. and Stokes, K.R. (2009) Galvanic corrosion performance of high strength copper-nickel alloys in seawater Journal of Corrosion Science and Engineering


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High strength copper-nickel (Cu-Ni-Mn-Al-Nb) alloys are widely used for marine applications due to their excellent resistance to seawater corrosion, high inherent resistance to biofouling and ease of fabrication. However, in-service experience has shown that these alloys may encounter variable performance worldwide due to local environmental conditions. In particular, the corrosion performance of high strength Cu-Ni alloys may be affected by the seawater environmental factors, which may include: biofouling, temperature, salinity, pH and dissolved oxygen content. This study reports an investigation into the galvanic corrosion performance between two wrought high strength copper-nickel alloys, with nickel contents of 15 and 19 %, regarding the influence of surface oxide films / deposits and biofouling. X-ray photoelectron spectroscopy was used to study the composition of the corrosion product films. Analyses of galvanic currents, coupled and decoupled potentials routinely monitored for seawater immersion over a period of 2 years are presented.

Item Type: Article
ISSNs: 1466-8858 (print)
Related URLs:
Keywords: galvanic, corrosion, seawater, high strength copper-nickel alloy, xps
ePrint ID: 65552
Date :
Date Event
2009Accepted/In Press
Date Deposited: 20 Feb 2009
Last Modified: 18 Apr 2017 21:55
Further Information:Google Scholar

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