Author:
DIAFI M., ,AIDI A.,BENHAOUA B., ,
Abstract
The purpose of this paper is to investigate the effect of TiO2 nanoparticles contents on structural properties, microhardness and corrosion resistance of Zn-Co alloy coating and ZnCo-TiO2 composite coatings is electrodeposited on steel substrate in the acid sulfate bath, The smaller grain size of the composite coatings is observed in the presence of TiO2 and it is confirmed by the images of scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. The corrosion performance of coating in the 3 % NaCl as a corrosive solution is investigated by potentiodynamic polarization and electrochemical impedance spectroscopy EIS methods. It is found that the incorporation of nanoparticules in Zn–Co alloy coating have better corrosion resistance and the values of Rct and Zw increase, while the values of Cdl decrease with the increasing of nanoparticules
Publisher
Virtual Company of Physics
Subject
Physical and Theoretical Chemistry,Condensed Matter Physics,General Materials Science,Biomedical Engineering,Atomic and Molecular Physics, and Optics,Structural Biology
Cited by
4 articles.
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