Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53765#.VNHUpizQrzE Author(s) Christos N. Panagopoulos * , Georgios D. Plainakis , Maria G. Tsoutsouva Affiliation(s) Laboratory of Physical Metallurgy, National Technical University of Athens, Athens, Greece . ABSTRACT The present study is dealing with the corrosion of copper coated with nanocrystalline nickeltungsten coating. Different plating bath compositions and conditions were used in order to produce nickel-tungsten coatings of different tungsten content 30%, 40% and 50% wt, with a thickness of 20 μm. The corrosion resistance of nickel-tungsten alloy coated copper was examined by a potentiodynamic polarisation technique in NaCl solution (0.03 M, 0.3 M and 1 M) as a function of pH (3, 7, 10) and temperature (7°C, 30°C, 40°C) of the solution. It has been found that the pH value did not seem to affect the corrosion behaviour of the coated specimen rema...
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