Comparative Anticorrosion Performance of Electrochemically Produced Zn-NiO and Zn-NiO-ZrO2 Composite Coatings on Mild Steel

被引：4
作者：
Deepa, K. [1 ]
Venkatesha, T. V. [1 ]
机构：
[1] Kuvempu Univ, Sch Chem Sci, Dept Studies Chem, Shankaraghatta 577451, Karnataka, India
来源：
SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY | 2019年 / 55卷 / 03期
关键词：
Zn-composite coating; electroplating; scanning electron microscopy; Tafel; electrochemical impedance spectroscopy; NANOCOMPOSITE COATINGS; CORROSION BEHAVIOR; GENERATION; ZN-TIO2;
D O I：
10.3103/S1068375519030050
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Zinc composite coatings of Zn-NiO and Zn-NiO-ZrO2 were produced by electrodeposition on mild steel using a Zn-sulphate bath. The homogeneous dispersion of the metal oxide nanoparticles for composite coating was achieved by magnetic stirring of the bath solution for about 6 h. The surface characteristics were examined by scanning electron microscopy supported by energy dispersive spectroscopy. The hydrophobic nature of the deposits has been determined by contact angle images of the deposits. The comparative corrosion resistive property of Zn, Zn-NiO and Zn-NiO-ZrO2 deposits was investigated by using a corrosion medium of 3.65% NaCl solution. The corrosion resistance performance of the coatings was analyzed by the Tafel polarization and electrochemical impedance spectroscopy.
引用
收藏
页码：317 / 323
页数：7
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