Electrodeposition and corrosion behavior of Zn–Ni and Zn–Ni–Fe2O3 coatings

Abstract

A thin film of Zn-Ni-Fe 2 O 3 on steel substrates was prepared by electrodeposition technique using Zn-Ni alloy plating solution with nano-sized Fe 2 O 3 particles. The cathodic polarization and cyclic voltammetry techniques were used to explain deposition process. The corrosion behavior of deposits was evaluated by polarization and impedance studies. Scanning electron microscope (SEM) images were used to study the surface morphology of coating. The grain size and amount of Fe 2 O 3 particles present in composite coating were measured by X-ray diffraction pattern (XRD) and energy dispersive X-ray diffraction spectrometer (EDS), respectively.

A Powerful Nanocomposite Polymer Prepared From Metal Oxide Nanoparticles Synthesized via Brown Algae as Anti-corrosion and Anti-biofilm

“…The development of some primary Zn/Cu single crystals in the areas coated by the nanocomposite. This result was in balance with previous studies (PraveenKumar et al, 2012;Aigbodion and Fayomi, 2016).…”

The influence of pulse plating parameters on microstructure and properties of Ni-W-Si3N4 nanocomposite coatings

“…11b) appeared smooth and compact. During the plating process, fine-grained structure of composites was obtained in the presence of nanoparticles due to slow crystal growth with increased nucleation rate [27,28]. Fig.…”

The Effect of Zn and Zn–WO3 Composites Nano-Coatings Deposition on Hardness and Corrosion Resistance in Steel Substrate

“…Zinc-based coatings replace the high toxicity of cadmium coatings at low cost with better corrosion resistance, weldability and ductility [ 49 ]. The use of hard materials, namely carbides (SiC and WC) and oxides (ZrO 2 , Al 2 O 3 , TiO 2 and SiO 2 ), as second phase materials in composite coatings offers superior hardness, high-temperature oxidation resistance, and self-lubricating properties for industrial parts [ 42 , 50 ]. Therefore, the study of multi-layer zinc-based composite coatings (hard materials as second phase material) with electrodeposition processing routes ensures that low cost enabled better coating properties are of industrial relevance.…”

“…The SiC particles dispersed uniformly in the zinc matrix by filling gaps and crack-type defects, resulting in a smooth surface that finally resulted in better corrosion resistance properties. Multi-layer zinc-based composite coatings (Zn–Ni, Zn–Ni–Fe 2 O 3 , Zn–TiO 2 , Cu–Sn–Zn–TiO 2 , Zn–TiO 2 /TiB 2 ) deposited on steel substrates via the electrodeposition technique resulted in better corrosion resistance [ 42 , 48 , 50 , 53 , 54 , 55 ]. The application of copper and zinc antifouling coatings is more beneficial for resisting corrosion by creating artificial surfaces on shipping and marine industrial parts [ 56 ].…”