Corrosion Resistance of Zinc Coated Steel in Sea Water Environment

  • Adrian DIACONU "Dunarea de Jos" University of Galati
  • Cătălin SOLOMON "Dunarea de Jos" University of Galati
  • Lidia BENEA "Dunarea de Jos" University of Galati
  • Valentin DUMITRAŞCU "Dunarea de Jos" University of Galati
  • Laurenţiu MARDARE "Dunarea de Jos" University of Galati
Keywords: low alloy steel, galvanizing steel, corrosion behavior, marine environment


The life time of metallic materials used in naval transport industry is influenced by their corrosion resistance. For utilization in shipbuilding and offshore construction, metallic materials need to be covered with protective coatings, especially, or different anti-corrosion protection methods need to be used. During the last decades a series of inorganic and organic coatings was developed. Among inorganic coatings, the most used ones are the galvanizing treatments. This paper presents a comparative investigation regarding the corrosion resistance of uncoated low alloy steel and galvanizing steel. Both samples have been subjected to corrosion in sea water harvested from the Black Sea, Mangalia harbor. The electrochemical assays were: open circuit potential (OCP), linear polarization resistance (Rp), potentiodynamic polarization (PD) and cyclic voltammetry. The results obtained by in situ determination were confirmed by optical microscopy. The results revealed an improved corrosion resistance of galvanized steel in natural sea water in comparison with low alloy steel.

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How to Cite
DIACONU A, SOLOMON C, BENEA L, DUMITRAŞCU V, MARDARE L. Corrosion Resistance of Zinc Coated Steel in Sea Water Environment. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Sep.2015 [cited 19May2024];38(3):34-9. Available from:

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