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International Journal of Corrosion
Volume 2011 (2011), Article ID 540196, 6 pages
http://dx.doi.org/10.1155/2011/540196
Research Article

Corrosion Behaviour of Zn-10Al-1.5Cu Alloy

Laboratory of Physical Metallurgy, National Technical University of Athens, Zografos, 15780 Athens, Greece

Received 24 August 2010; Revised 2 December 2010; Accepted 11 January 2011

Academic Editor: Michael J. Schütze

Copyright © 2011 C. N. Panagopoulos and A. G. Tsopani. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The corrosion behaviour of Zn-10Al-1.5Cu alloy in NaCl solution was examined. The used NaCl solution concentrations were 1M, 0.3M, and 0.003M for a constant temperature values of 7°C or 25°C or 45°C. The corrosion behaviour of this alloy was investigated under potentiodynamic corrosion conditions. The surface of the corroded alloy specimens was studied with the aid of scanning electron microscopy and X-ray diffraction techniques. It was observed that the increase of NaCl concentration in the corrosion solution for a constant value of temperature led to lower corrosion resistance of the alloy. For a constant value of solution concentration, the increase of solution temperature also led to the decrease of corrosion resistance of the same alloy.