TY - JOUR
T1 - Influence of the electrodeposition current regime on the corrosion resistance of Zn-CeO2 nanocomposite coatings
AU - Nemes, Patrick Ioan
AU - Lekka, Maria
AU - Fedrizzi, Lorenzo
AU - Muresan, Liana Maria
PY - 2014/8/15
Y1 - 2014/8/15
N2 - The present work aims at studying the influence of the current regime on the electrodeposition of zinc-ceria composite coatings obtained from a chloride based electrolyte, by using both direct and pulse current electrodeposition techniques. The microstructure, microhardness, composition profile and the corrosion parameters of the samples were evaluated via SEM, GDOES, microhardness tests and polarization curves, respectively. Pure zinc samples obtained under the same experimental conditions were used as a reference. The addition of CeO2 nanoparticles leads to finer grained deposits, with better corrosion resistant properties. The study also revealed that a pulsed-current regime is preferable to a direct-current approach of the electro-co-deposition process, leading to coatings with better anti-corrosion properties.
AB - The present work aims at studying the influence of the current regime on the electrodeposition of zinc-ceria composite coatings obtained from a chloride based electrolyte, by using both direct and pulse current electrodeposition techniques. The microstructure, microhardness, composition profile and the corrosion parameters of the samples were evaluated via SEM, GDOES, microhardness tests and polarization curves, respectively. Pure zinc samples obtained under the same experimental conditions were used as a reference. The addition of CeO2 nanoparticles leads to finer grained deposits, with better corrosion resistant properties. The study also revealed that a pulsed-current regime is preferable to a direct-current approach of the electro-co-deposition process, leading to coatings with better anti-corrosion properties.
KW - Corrosion
KW - Direct and pulse current
KW - Electrodeposition
UR - https://www.scopus.com/pages/publications/84901841290
U2 - 10.1016/j.surfcoat.2014.04.051
DO - 10.1016/j.surfcoat.2014.04.051
M3 - Article
AN - SCOPUS:84901841290
SN - 0257-8972
VL - 252
SP - 102
EP - 107
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -