Corrosion inhibition impact of Pyracantha coccinea M. Roem extracts and their use as additives in zinc electroplating: Coating morphology, electrochemical and weight loss investigations

Hanini, Karima; Boudiba, Sameh; Baya, Berka; Boudiba, Louiza; Hatem, Beddiar; Benahmed, M.

doi:10.1016/j.jtice.2021.04.007

Cited by 21 publications

(6 citation statements)

References 22 publications

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“…Where i corr ° and i corr are the current densities for the samples plated without and with the addition of different concentrations of additives, respectively. From the results illustrated in Table 1, it is noticed that the values of i corr , 𝐶𝑅, and 𝑃 for plated samples in the presence of additives, compared to those obtained in their absence, are lower, indicating that the presence of extracts in the electroplating bath modified and improved the quality of the deposit [33] , exceptionallywith 3.2 g/l of BE reaching an inhibition efficiency of 96.60 % .…”

Section: Scanning Electron Microscopy With Energy Dispersive Spectros...mentioning

confidence: 98%

“…In addition, it is noticed that in the presence of additives, the porosity defect is minimal in addition to the tightly packed crystals. The fact that these clearly defined crystals are mostly round and are separated from one another by crystals with a rod-like shape also indicates that the electrodeposited zinc microstructure is of high quality and provides effective corrosion protection [33] .…”

Section: Scanning Electron Microscopy With Energy Dispersive Spectros...mentioning

confidence: 99%

“…Potassium chloride KCl (200 g/l) provides the chloride content, which helps to enhance the conductivity of the solution. Different concentrations of Centaureanapifolia extracts were tested as additives [30,33] .…”

Section: Electrodeposition Bathmentioning

confidence: 99%

“…The utilization of plant extracts extended beyond the realm of medicine [25][26][27] , encompassing various domains such as the protection of metals and alloys against corrosion [28] . In this context, plant extracts have shown very good performance as additives [18,[29][30][31][32][33] in electroplating baths in terms of enhancing the quality of plating (roughness, porosity, brightness, and corrosion resistance) [8] . Furthermore, they have proven to be valuable inhibitors in acidic solutions, effectively reducing the corrosion rate [17,34,35] .…”

Section: Introductionmentioning

confidence: 99%

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Investigating Centaurea napifolia Extracts for Zinc Electroplating Efficiency and Corrosion Prevention: Experimental and Surface Analysis

Soltani,

Hanini,

Benahmed

et al. 2024

Preprint

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The ability of Centaurea napifolia extracts, hydro-methanolic (HME), methylene dichloride (MDE), ethyl acetate (EAE), and n-butanol (BE), to inhibit carbon steel (CS) corrosion in acidic environments and to function as additives in mild steel (MS) electroplating baths with pure zinc is assessed in this study. Potentiodynamic polarization, gravimetric method, scanning electron microscopy with energy dispersive spectroscopy (SEM/EDS), profilometer, and electrochemical impedance spectroscopy (EIS) were used in this investigation to evaluate the corrosion behavior. Brightness, thickness, and adhesion strength served as indicators of the zinc's quality when deposited on the various substrates. The findings demonstrated that the addition of plant extracts enhanced the coating's quality, resulting in less porous plates with improved adhesion, increased brightness, and more corrosion resistance. The optimal corrosion rate is 0.038 mm/y obtained in the presence of 3.2 g/l of BE in the electroplating bath, compared to 1.137 mm/y without the additive and 3.783 mm/y for unplated MS. Moreover, the current density decreased from 0.3235 mA/cm² for unplated MS to 0.0972 mA/cm² and 0.0033 mA/cm² for plated without additive and when adding 3.2 g/l of the BE, respectively. The extracts were also evaluated as CS corrosion inhibitors in a 1M HCl solution. The results show that the inhibitor's ability to stop the corrosion reaction increased as the concentration went up but decreased as the temperature went up, with a maximum efficiency of 700 ppm (81%), 800 ppm (73%), 700 ppm (82%), and 700 ppm (78%), for HME, MDE, EAE, and BE, respectively. The adsorption process of all the extracts on the metallic surface obeys the Langmuir isotherm. The thermodynamic parameters of adsorption were calculated and discussed, and the results indicated that the adsorption was physical, spontaneous, and exothermic.

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Section: Scanning Electron Microscopy With Energy Dispersive Spectros...mentioning

confidence: 98%

Section: Scanning Electron Microscopy With Energy Dispersive Spectros...mentioning

confidence: 99%

Section: Electrodeposition Bathmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigating Centaurea napifolia Extracts for Zinc Electroplating Efficiency and Corrosion Prevention: Experimental and Surface Analysis

Soltani,

Hanini,

Benahmed

et al. 2024

Preprint

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“…In this scenario, the use of zinc as a metallic coating is a common strategy to avoid the corrosion deterioration of carbon steel materials [7]. The zinc promotes good galvanic protection, behaving like a sacrificial anode [3].…”

Section: Introductionmentioning

confidence: 99%

Influence of current density and temperature in the zinc electroplating process at sulfate-based acid solution: study on process efficiency and coating morphology

et al. 2021

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Zinc as a metallic coating is a common strategy to protect the carbon steel against corrosion. The most common process of zinc deposition is known as electroplating. Because of the high toxicity of cyanide-based baths, the interest in acid baths has grown, but they present many challenges to be overcome. Several operational parameters and bath constitution – such as current density, pH, and zinc concentration – can impact the current efficiency, deposit quality, and coating morphology. In this work, the process efficiency and the coating morphology were evaluated on electroplated AISI 1008 carbon steel samples. The current density and temperature were individually varied on a range from 7.5 mA.cm-2 to 30.5 mA.cm-2, and from 40 °C to 60 °C, respectively. The process efficiency was evaluated by current efficiency (eC). The surface morphology was analyzed by both optical microscopy (OM) and scanning electron microscopy (SEM). Varying the bath temperature did not promote impacts in the current efficiency, which remained in all temperatures evaluated over 95%. On the other hand, increasing the current density, increased the current efficiency, starting from (85 ± 2)% at 7.5 mA.cm-2 to (92 ± 2)% at 19.0 mA.cm-2, and (95 ± 1)% at 30.5 mA.cm-2. Through OM and SEM analysis, the increase in the temperature tended to turn the coating rougher, and the sample was not completely covered at 7.5 mA.cm-2. Therefore, we recommend the use of a temperature between 40 °C and 50 °C associated with a current density of 30.5 mA.cm-2.

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Natural Extracts as Bath Additive in the Zinc Electroplating Process

Gonçalves

Benvenuti

Veloso

et al. 2022

Encyclopedia of Green Materials

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Corrosion inhibition impact of Pyracantha coccinea M. Roem extracts and their use as additives in zinc electroplating: Coating morphology, electrochemical and weight loss investigations

Cited by 21 publications

References 22 publications

Investigating Centaurea napifolia Extracts for Zinc Electroplating Efficiency and Corrosion Prevention: Experimental and Surface Analysis

Investigating Centaurea napifolia Extracts for Zinc Electroplating Efficiency and Corrosion Prevention: Experimental and Surface Analysis

Influence of current density and temperature in the zinc electroplating process at sulfate-based acid solution: study on process efficiency and coating morphology

Natural Extracts as Bath Additive in the Zinc Electroplating Process

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