Inhibition Effect of Thiourea Derivative for Mild Steel Corrosion in Acid Medium: Experimental and Theoretical Studies

Lavanya, D. K.; Frank, V. Priya; Vijaya, D.; Bangera, Supriya

doi:10.1007/s40735-021-00487-7

Cited by 5 publications

(2 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…15 clearly illustrates that by subjecting the specimen to 1 M HCl (blank), the surface morphology was severely damaged due to the acid corrosion attack. The appearance of the O signal in the EDS spectrum serves as evidence for the formation of iron oxides, which confirms the extent of the damage caused by acid corrosion [56,86] . However, after being submerged in an acidic solution containing 700, 800, 700, and 700 ppm of HME, MDE, EAE, and BE, respectively, the specimen's surface was smoother with few cracks and pits;…”

Section: Activation Parameters Of the Corrosion Processmentioning

confidence: 52%

“…It can be seen from Table 6 that the inhibitory efficiency increases with inhibitor concentration and reaches a maximum at 700 ppm (81.18 %), 800 ppm (73.84 %), 700 ppm (82.02 %), and 700 ppm (78.11 %), for HME, MDE, EAE, and BE, respectively. This increase is accompanied by a decrease in the current density, indicating that the addition of inhibitors reduces the anodic dissolution of steel and delays the evolution of hydrogen by simply adhering to the metal surface and blocking the active sites [56] .…”

Section: Area Roughness Parametersmentioning

confidence: 99%

See 1 more Smart Citation

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

Soltani,

Hanini,

Benahmed

et al. 2024

Preprint

View full text Add to dashboard Cite

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.

show abstract

Section: Activation Parameters Of the Corrosion Processmentioning

confidence: 52%

Section: Area Roughness Parametersmentioning

confidence: 99%

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

Soltani,

Hanini,

Benahmed

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Electrochemical, surface, and theoretical investigations of palm kernel shell extract as an effective inhibitor for carbon-steel corrosion in 1 M HCl solution

Sanni,

Ren,

Jen

2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

Herein, we employed palm kernel shell extract (PKSE) as an eco-friendly inhibitor for carbon steel in acidic-induced corrosion. The corrosion inhibition of PKSE on carbon steel in 1 M HCI solution was investigated by electrochemical impedance spectroscopy, weight loss, and potentiodynamic polarization measurements. The surface was characterized by scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy. Moreover, the elastic modulus and hardness tests were conducted. Weight loss measurements revealed that the optimum concentration of inhibitors is 500 ppm with 95.3% inhibition efficiency in 1 M HCl solution. Electrochemical results showed that the inhibitor could exhibit excellent corrosion inhibition performance and displayed mixed-type inhibition. The electrochemical impedance spectroscopy analysis shows that the inhibition performance increases by increasing the concentration of PKSE. The surface studies ensure the PKSE effectiveness in carbon steel surface damage reduction. Also, the adsorption of PKSE molecules on the carbon steel surface occurs according to the Langmuir isotherm model. The primary goal of this investigation was the utilization of palm kernel shell extract as corrosion inhibitor for 1018 low carbon steel in 1 M HCl solution, which highlights its novelty. The present results will be helpful to uncover the versatile importance of palm kernel shell compounds in the corrosion inhibition process.

show abstract

Averrhoa bilimbi Leaf Extract as a Potent and Sustainable Inhibitor for Mild Steel in 1 M HCl Medium: Experimental and DFT Enumeration

2022

View full text Add to dashboard Cite

Inhibition Effect of Thiourea Derivative for Mild Steel Corrosion in Acid Medium: Experimental and Theoretical Studies

Cited by 5 publications

References 63 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

Electrochemical, surface, and theoretical investigations of palm kernel shell extract as an effective inhibitor for carbon-steel corrosion in 1 M HCl solution

Averrhoa bilimbi Leaf Extract as a Potent and Sustainable Inhibitor for Mild Steel in 1 M HCl Medium: Experimental and DFT Enumeration

Contact Info

Product

Resources

About