Amodiaquine drug as a corrosion inhibitor for mild steel in 0.1M HCl solution

Akpan, I. A.; Offiong, Nnanake‐Abasi O.

doi:10.30970/cma7.0274

Cited by 12 publications

(11 citation statements)

References 17 publications

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“…In our study, values of n with and without amides range from 0.836 to 0.798. The deviation from unity (ideal capacitive behavior) is due to the presence of surface inhomogeneity and surface roughness [53]. Using Eq.…”

Section: Adsorption Isotherm Behaviormentioning

confidence: 99%

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

et al. 2021

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This research demonstrates the effect of some amide compounds (1 and 2) as corrosion inhibitors on C-steel in 1.0 M of hydrochloric solutions utilizing mass reduction studies, electrochemical [potentiodynamic (PP), AC impedance measurements (EIS), electrochemical frequency modulation] techniques, and surface checks were used to illustrate the importance of amide compounds to the corrosion protection process of C-steel. The tests displayed that the inhibition efficiency (IE%) augmented with increase in amide dose but reduced with growth of temperature. The highest inhibition efficiency is 99% for compound (1) and 98.8% for compound (2) at maximum dose tested (50 µM) by polarization method. PP data show that these compounds affect both cathodic and anodic processes (i.e. mixed type) and were adsorption on the carbon steel obeying Langmuir adsorption isotherm. The EIS results indicate that the changes in impedance parameters are related to the adsorption of amides on the alloy surface. Scanning of electron microscopy, energy transmitted X-ray—Atomic force microscopy studied the morphology of inhibited C-steel. Graphic abstract

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Section: Adsorption Isotherm Behaviormentioning

confidence: 99%

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

et al. 2021

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“…After 4 h of testing, all systems showed R p values greater than the reference. The R p values increased as the inhibition approached the maximum when the metal apparently stopped corroding . The increase of R p values with the increase of the extract concentration is due to the adsorption of the organic molecule on the metal surface .…”

Section: Resultsmentioning

confidence: 95%

Effect of Equisetum arvense extract as corrosion inhibitor of A36 steel in sulfuric acid solution

Ramírez‐Peralta

León-Silva

Díaz

et al. 2018

Materials & Corrosion

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The Equisetum arvense extract was prepared by the maceration technique and experimentally tested as a corrosion inhibitor of A36 steel in 0.5 M sulfuric acid at room temperature. The corrosion resistance was estimated by the determination of the polarization curves, linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS). In order to study the effect of the Equisetum arvense extract on the superficial morphology of metal, scanning electronic microscopy (SEM) was used. The results indicated a decrease of about two orders of magnitude in the corrosion rate, an increase in polarization resistance and a greater efficiency of inhibition by increasing the concentration of extract. The corrosion mechanism was mainly controlled by charge transfer from metal to the environment through the double electrochemical layer. The SEM images corroborated the results obtained in the corrosion tests, at higher concentration of extract less metal surface damage was observed.

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“…Therefore, polymeric systems tested at 25°C and 80°C offer good protection to cracked 410SS. The E corr and I corr were obtained by Tafel extrapolation method, the anodic and cathodic Tafel slopes (bA and bC) are obtained from the ACM software and the corrosion PE was calculated according to equation (1) (Akpan and Offiong, 2015). The values of these parameters are presented in Table 2: …”

Section: Resultsmentioning

confidence: 99%

Corrosion protection by poly(3-hexylthiophene)/poly(methyl-methacrylate) coating of cracked 410 stainless steel

Conde-Nicho

Nicho

Rodríguez

et al. 2022

ACMM

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Purpose This paper aims to study the corrosion protection of 410 stainless steel (410SS) cracked by fatigue tests. The purpose of this study is to show that using polymeric coatings, it is possible to reduce the corrosion rate in metallic structures in operation. Design/methodology/approach Poly(3-hexylthiophene) (P3HT)/poly(methyl-methacrylate) (PMMA) composite was used as a coating to protect the cracked 410SS in the corrosive environment 0.5 M NaCl at 25°C and 80°C. Physicochemical characterization was carried out by adhesion tests, thermogravimetric analysis, nuclear magnetic resonance and size exclusion chromatography. Surface morphology was studied before and after the electrochemical tests by scanning electron microscopy. Uncoated and coated cracked 410SS were characterized by DC electrochemical techniques: linear polarization resistance and potentiodynamic polarization curves. Findings P3HT/PMMA coating reduced corrosion rate and crack propagation of 410SS in the corrosive medium NaCl 0.5M. The P3HT/PMMA coating increased the polarization resistance by one order of magnitude and decreased the corrosion current density by one order of magnitude, relative to the values obtained with uncoated cracked 410SS. The coating helped to have a less damaged surface and less crack propagation on the cracked 410SS. The feasibility of increasing the useful life of cracked metal structures in a saline environment was demonstrated through polymeric composite coatings. Originality/value In the literature, no works were detected that report the use of organic coatings to protect cracked metals against corrosion. This is the first reported work on the corrosion protection of 410SS in a saline medium using coatings based on P3HT/PMMA.

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Amodiaquine drug as a corrosion inhibitor for mild steel in 0.1M HCl solution

Cited by 12 publications

References 17 publications

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

Effect of Equisetum arvense extract as corrosion inhibitor of A36 steel in sulfuric acid solution

Corrosion protection by poly(3-hexylthiophene)/poly(methyl-methacrylate) coating of cracked 410 stainless steel

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