Efficiency of corrosion inhibitors in mitigating corrosion of steel under elevated temperature and chloride concentration

Al-Sodani, Khaled A. Alawi; Al‐Amoudi, Omar S. Baghabra; Maslehuddin, Mohammed; Shameem, Mohammed

doi:10.1016/j.conbuildmat.2017.12.097

Cited by 48 publications

(20 citation statements)

References 17 publications

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“…negative potentials compared to that of 393.15 K. is confirms that the corrosion of C38 steel in 1 M HCl is significantly enhanced when the temperature increases [32][33][34]. A er the desorption potential, the plots become almost similar to the blank one.…”

Section: Resultssupporting

confidence: 67%

Electrochemical and Thermodynamic Investigation on Corrosion Inhibition of C38 Steel in 1M Hydrochloric Acid Using the Hydro-Alcoholic Extract of Used Coffee Grounds

Bouhlal

Labjar

Abdoun

et al. 2020

International Journal of Corrosion

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The present work investigates the influence of temperature on C38 steel corrosion in a 1 M HCl medium with and without different concentrations of a hydro-alcoholic extract of used coffee grounds (HECG). The potentiodynamic polarization technique and the electrochemical impedance spectroscopy were performed in temperatures ranging from 293.15 to 323.15 K. It was observed that the inhibition efficiency decreased with increased temperature and inhibitor concentration. The HECG adsorption process on C38 steel surface was found to be spontaneous and obeyed to Langmuir isotherm at all studied temperatures. The associated thermodynamic parameters of adsorption led to suggest the occurrence of physical adsorption of the HECG compounds on the C38 steel surface.

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Section: Resultssupporting

confidence: 67%

Electrochemical and Thermodynamic Investigation on Corrosion Inhibition of C38 Steel in 1M Hydrochloric Acid Using the Hydro-Alcoholic Extract of Used Coffee Grounds

Bouhlal

Labjar

Abdoun

et al. 2020

International Journal of Corrosion

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“…Five (generic and proprietary) corrosion inhibitors were evaluated. A complete presentation of the investigated inhibitors is listed in Table 1 , which highlights the designation of the inhibitors properties such as dosage, colour, density and pH 27 , 28 . In this study, the inhibitors performance was evaluated under the simultaneous presence of sulfate and chloride concentrations at elevated temperature.…”

Section: Methodsmentioning

confidence: 99%

Efficiency of generic and proprietary inhibitors in mitigating Corrosion of Carbon Steel in Chloride-Sulfate Environments

Al-Sodani

Maslehuddin

Al‐Amoudi

et al. 2018

Sci Rep

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The efficiency of generic and proprietary corrosion inhibitors (based on nitrite, amine carboxylate or amino alcohol) in corrosion mitigation of carbon steel, which is exposed to concrete solutions with different amounts of chloride as well as sulfate, was studied. The corrosion protection provided by the selected corrosion inhibitors was investigated by performing a potentiodynamic polarization study. In addition, the surface morphological properties of carbon steel samples exposed to the electrolyte mixed with or without inhibitors was also evaluated by scanning electron microscopy. The potentiodynamic polarization measurements showed that the evaluated inhibitors decreased the corrosion current density by 1.6 to 6.7 times depending on the type of inhibitor and the level of sulfate concentration in the electrolyte. The performance of inhibitors based on nitrite was better than that of inhibitors based on amine carboxylate or amino alcohol. The possible mechanisms of the inhibition in the chloride plus sulfate environments are also elucidated.

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“…The cathodic nature as well as the anodic part of polarization curves of St37 steel substrate are thoroughly changed by the use of sol-gel coating. 32 As per the results of polarization test in Figure 5C and Table 1, by increasing the immersion time from 24 to 48 hours, the zirconia-ceria-benzotriazole ceramic-based coating shows higher corrosion resistance compared with the zirconia single-component coating. This can be due to the presence of benzotriazole inhibitor agent inside the zirconia-ceria-benzotriazole ceramic-based coating.…”

Section: Investigation Of Corrosion Behavior and Self-healingmentioning

confidence: 62%

“…Considering the polarization curves, the trend of electrochemical changes from St37 steel substrate to coated samples is clearly observable. The cathodic nature as well as the anodic part of polarization curves of St37 steel substrate are thoroughly changed by the use of sol–gel coating …”

Section: Resultsmentioning

confidence: 99%

A study on the effect of presence of CeO₂ and benzotriazole on activation of self‐healing mechanism in ZrO₂ ceramic‐based coating

Dezfuli

Sabzi

2018

Int J Applied Ceramic Tech

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In this study, the effect of presence of CeO2 and benzotriazole inhibitor agent on activation of self‐healing reactions and the corrosion behavior of ZrO2 ceramic‐based coating are evaluated. The ZrO2 and ZrO2‐CeO2‐benzotriazole ceramic‐based coatings were synthesized using sol–gel process and heat treated at 150°C. Afterward, X‐ray diffraction analysis (XRD), and Field Emission Scanning Electron Microscopy (FE‐SEM) were utilized to evaluate the phase analysis and morphology of these coatings. In addition, Energy Dispersive Spectroscopy (EDS) was used for elemental analysis of obtained coatings. Corrosion and self‐healing behavior of the coatings were investigated in 3.5 wt% NaCl solution using Electrochemical Impedance Spectroscopy (EIS) and potentiodynamic polarization tests. The results of XRD analysis revealed the amorphous nature of both coatings. FE‐SEM observations and EDS analysis results showed the presence of benzotriazole inhibitor agent and self‐healing reactions in the cracks and defects of ZrO2‐CeO2‐benzotriazole ceramic‐based coating. Moreover, results of electrochemical tests revealed that the presence of CeO2 and benzotriazole inhibitor agent in the ZrO2 ceramic‐based coating results in intense increases in the corrosion resistance of this coating by activating the self‐healing mechanism and forming passive layers.

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Efficiency of corrosion inhibitors in mitigating corrosion of steel under elevated temperature and chloride concentration

Cited by 48 publications

References 17 publications

Electrochemical and Thermodynamic Investigation on Corrosion Inhibition of C38 Steel in 1M Hydrochloric Acid Using the Hydro-Alcoholic Extract of Used Coffee Grounds

Electrochemical and Thermodynamic Investigation on Corrosion Inhibition of C38 Steel in 1M Hydrochloric Acid Using the Hydro-Alcoholic Extract of Used Coffee Grounds

Efficiency of generic and proprietary inhibitors in mitigating Corrosion of Carbon Steel in Chloride-Sulfate Environments

A study on the effect of presence of CeO₂ and benzotriazole on activation of self‐healing mechanism in ZrO₂ ceramic‐based coating

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Efficiency of corrosion inhibitors in mitigating corrosion of steel under elevated temperature and chloride concentration

Cited by 48 publications

References 17 publications

Electrochemical and Thermodynamic Investigation on Corrosion Inhibition of C38 Steel in 1M Hydrochloric Acid Using the Hydro-Alcoholic Extract of Used Coffee Grounds

Electrochemical and Thermodynamic Investigation on Corrosion Inhibition of C38 Steel in 1M Hydrochloric Acid Using the Hydro-Alcoholic Extract of Used Coffee Grounds

Efficiency of generic and proprietary inhibitors in mitigating Corrosion of Carbon Steel in Chloride-Sulfate Environments

A study on the effect of presence of CeO2 and benzotriazole on activation of self‐healing mechanism in ZrO2 ceramic‐based coating

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Product

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A study on the effect of presence of CeO₂ and benzotriazole on activation of self‐healing mechanism in ZrO₂ ceramic‐based coating