Corrosion inhibition of carbon steel immersed in a 1 M HCl solution using benzothiazole derivatives

Jafari, Hojat; Akbarzade, Kazem; Danaee, I.

doi:10.1016/j.arabjc.2014.11.018

Cited by 119 publications

(49 citation statements)

References 23 publications

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“…The corresponding electrical equivalent circuits, along with the related fitted parameters for the initial and long-term immersion, are shown in Figure 13a,b, respectively. The fitted parameters include the following factors: R1-solution resistance, R2 and Q1 (capacitor), related to the double layer [19,20], R3 and Q2, corresponding to charge transfer resistance and capacitor, respectively, which are related to the effect of corrosion products and the time constant that appeared in the low frequency region [21,22]. Stress corrosion examination of the printed ER70S-6 and reference ST-37 alloys by slow strain rate testing (SSRT) in 3.5% NaCl solution in terms of UTS and elongation are shown in Figures 14 and 15, respectively.…”

Section: Resultsmentioning

confidence: 99%

Environmental Behavior of Low Carbon Steel Produced by a Wire Arc Additive Manufacturing Process

Ron

Levy

Dolev

et al. 2019

Metals

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: Current additive manufacturing (AM) processes are mainly focused on powder bed technologies, such as electron beam melting (EBM) and selective laser melting (SLM). However, the main disadvantages of such techniques are related to the high cost of metal powder, the degree of energy consumption, and the sizes of the components, that are limited by the size of the printing cell. The aim of the present study was to evaluate the environmental behavior of low carbon steel (ER70S-6) produced by a relatively inexpensive AM process using wire feed arc welding. The mechanical properties were examined by tension testing and hardness measurements, while microstructure was assessed by scanning electron microscopy and X-ray diffraction analysis. General corrosion performance was evaluated by salt spray testing, immersion testing, potentiodynamic polarization analysis, and electrochemical impedance spectroscopy. Stress corrosion performance was characterized in terms of slow strain rate testing (SSRT). All corrosion tests were carried out in 3.5% NaCl solution at room temperature. The results indicated that the general corrosion resistance of wire arc additive manufacturing (WAAM) samples were quite similar to those of the counterpart ST-37 steel and the stress corrosion resistance of both alloys was adequate. Altogether, it was clearly evident that the WAAM process did not encounter any deterioration in corrosion performance compared to its conventional wrought alloy counterpart.

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Section: Resultsmentioning

confidence: 99%

Environmental Behavior of Low Carbon Steel Produced by a Wire Arc Additive Manufacturing Process

Ron

Levy

Dolev

et al. 2019

Metals

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“…onto the metal surface, making it more resistant to corrosion than the panel subjected to the solution without inhibitor additives. Moreover, it may be remarked that MBT acts as a mixed inhibitor for mild steel in NaCl solutions [78]. The polarization curves recorded for mild steel panels in the presence or absence of inhibitors after subjection in WSS for 24 h are demonstrated in Figure 17.…”

Section: Appl Sci 2019 9 X For Peer Review 18 Of 38mentioning

confidence: 92%

“…The increase in potential is assigned to the creation of protective films onto the metal surface, making it more resistant to corrosion than the panel subjected to the solution without inhibitor additives. Moreover, it may be remarked that MBT acts as a mixed inhibitor for mild steel in NaCl solutions [78].…”

Section: Electrochemical Studiesmentioning

confidence: 99%

“…According to the literature, two main corrosion inhibition mechanisms for mild steel protection have proved to be more reliable [77]. The first one is through chemisoption onto the mild steel surface, limiting the metal dissolution rate by forming an adherent passive film, as MBT does for lightly acidic and near-neutral aqueous systems [78]. The second one is by the formation of a new phase onto the metallic surface, creating a conversion coating, as during the phosphating process.…”

Section: Corrosion Inhibitorsmentioning

confidence: 99%

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Comparative Study on the Corrosion Inhibitive Effect of 2-Mecraptobenzothiazole and Na2HPO4 on Industrial Conveying API 5L X42 Pipeline Steel

et al. 2019

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Mild or low-carbon steel has an increasing utilization and is widely used for building construction, machinery parts, and pipelines, because it can be machined easily and has enhanced weldability as well as a low price. In any case, the corrosion resistance of mild steel under the conditions in industrial applications or in atmosphere is a thoughtful concern. This study inquires into the application of 2-mecraptobenzothiazole (MBT) and Na2HPO4 as corrosion inhibitors for the protection of API 5L X42 pipeline steel in 3.5 wt % NaCl as well as in water from the Athens city supply system. The electrochemical/morphological characterizations of the aforementioned mild steel proved that the corrosion protection mechanisms can be assigned to the protective layers created onto the metal surface because of the presence of the inhibitors, which prevent chloride’s penetration. The synergistic effect of the MBT and Na2HPO4 corrosion inhibition behavior, in a molar ratio of 1:1, revealed that the additives performed effectively with corrosion inhibition efficiency above 90%.

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“…Depending on the category of the inhibitor they act by film formation, selective precipitation and/ or alteration of the corrosive environment [13]. Research on green corrosion inhibitors shows it acts through film formation on carbon steels with good inhibition protection [14][15][16][17]. In contribution to research on corrosion prevention through appropriate material selection and chemical control, this research aims to study the synergistic combination effect of 4-methyl-norvalin and 2-methoxy-4-formylphenol organic derivatives on the corrosion of P4 low carbon mold steel in dilute H 2 SO 4 and HCl solution.…”

Section: Introductionmentioning

confidence: 99%

Inhibition effect of the synergistic properties of 4-methyl-norvalin and 2-methoxy-4-formylphenol on the electrochemical deterioration of P4 low carbon mold steel

Loto

Ogaga

2020

Open Engineering

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AbstractStudy of the synergistic inhibition properties of the combined admixture of 4-methyl-norvalin and 2-methoxy-4-formylphenol (non-toxic organic compounds) on the corrosion of P4 low carbon mold steel in 1.5 M H2SO4 and HCl solution was performed with weight loss measurement, potentiodynamic polarization and optical microscopy analysis. Results obtained showed the inhibition efficiency of the admixed compound performed above the value for effective corrosion inhibition at very low concentrations in H2SO4 solution. However, from mid concentration to the highest concentration studied, the inhibition efficiency of the compound was above 85% from electrochemical tests. In HCl solution the inhibition efficiency of the compound was well above 80% and 90% for weight loss and polarization tests at all concentration studied. Anodic corrosion inhibition mechanism was determined for the compound in H2SO4 according to Freundlich and Frumkin adsorption isotherms due to weak Van der Waals attraction between the inhibitor molecules and the steel’s surface. The mechanism of corrosion inhibition in HCl was calculated to be cathodic type according to Langmuir isotherm model.Morphological images of inhibited and non-inhibited steel surfaces significantly contrast each other though the extent of deterioration was much severe for the steel from H2SO4 solution.

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Corrosion inhibition of carbon steel immersed in a 1 M HCl solution using benzothiazole derivatives

Cited by 119 publications

References 23 publications

Environmental Behavior of Low Carbon Steel Produced by a Wire Arc Additive Manufacturing Process

Environmental Behavior of Low Carbon Steel Produced by a Wire Arc Additive Manufacturing Process

Comparative Study on the Corrosion Inhibitive Effect of 2-Mecraptobenzothiazole and Na2HPO4 on Industrial Conveying API 5L X42 Pipeline Steel

Inhibition effect of the synergistic properties of 4-methyl-norvalin and 2-methoxy-4-formylphenol on the electrochemical deterioration of P4 low carbon mold steel

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