Electrochemical Studies and Characterization of Zn-Mn Coatings deposited in the presence of Novel Organic Additives
- Authors: Nouha Loukil1, Mongi Feki2
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View Affiliations Hide Affiliations1 Laboratory of Material Engineering and Environment, ENIS Tunisia, University of Sfax, Tunisia 2 Laboratory of Material Engineering and Environment, ENIS-Tunisia, University of Sfax, Sfax, Tunisia
- Source: Mechanical Engineering Technologies and Applications: Volume 1 , pp 101-117
- Publication Date: November 2021
- Language: English
Electrochemical Studies and Characterization of Zn-Mn Coatings deposited in the presence of Novel Organic Additives, Page 1 of 1
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A novel additive based on alkylphenol ethoxylate sulphite was investigated in Zn-Mn electrodeposition on steel from a chloride bath. Electrochemical study via cyclic voltammetry showed that the tested additive increases the over-potential of the Zn deposition, resulting from strong adsorption of molecules additives on the cathode surface. Thus, Mn-rich alloy containing 16.3% of Mn is successfully co-deposited. The morphology and crystallographic structure of Zn-Mn co-deposits were analyzed using Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD), respectively. SEM micrographs showed that Zn-16.3% Mn alloy obtained in the presence of the tested additive displays hexagonal pyramid morphology. XRD analysis exhibited that Zn-16.3% Mn alloy is monophasic with hexagonal close-packed ε-Zn-Mn phase.
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