Epoxy coatings modified with a new cerium phosphate inhibitor for smart corrosion protection of steel

Morozov, Yegor; Calado, Lénia M.; Shakoor, Abdul; Raj, Roma; Kahraman, Ramazan; Taryba, Maryna; Montemor, M.F.

doi:10.1016/j.corsci.2019.108128

Cited by 119 publications

(50 citation statements)

References 27 publications

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“…the mild steel together with the phosphates (Steel-WSS-Na2HPO4) shifts the OCP to more positive values after the fourth hour compared to the one of the Steel-WSS-blank. This indication clearly denotes that Na2HPO4 acts as an anodic inhibitor for mild steel, which is a result that is also confirmed by the literature [75]. On the other hand, for the system Steel-WSS-MBT, the OCP shifts to negative values, indicating that the presence of MBT inhibits the cathodic reactions [76].…”

Section: Electrochemical Studiessupporting

confidence: 85%

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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Section: Electrochemical Studiessupporting

confidence: 85%

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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“…All these factors can make the organic molecule to act as efficient corrosion inhibitors. Unfortunately, utmost of these inhibitors display poisonous action in contradiction to the environment [8][9][10][11][12]. e green chemistry has been speedily developed to diminish the antagonistic possessions accompanying with the toxic organic inhibitors.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Influencing Variables on the Corrosion Property of Steel Alloy 4130 in 3.5 wt.% NaCl Solution

El-Shamy

El-Hadek

Nassef

et al. 2020

Journal of Chemistry

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In this work, the aqueous Lawsonia inermis extract (LI) is investigated as an economic and green deterioration inhibitive formula for steel alloy 4130 in 3.5 wt.% NaCl solutions. The water-based extraction process is considered as one of the cheapest techniques for preparation of active ingredients of natural products. These ingredients play an important role in corrosion mitigation of steel alloy 4130 in saline media. This extract was subjected to three different parameters: inhibitor concentration, rotation speed, and temperature in 3.5 wt.% NaCl solutions. The electrochemical techniques are used to perceive the corrosion behavior, and the obtained results were dedicated to theoretical explorations to assess the features of corrosion inhibition and the adsorption over the steel substrate in 3.5 wt.% NaCl solutions. Affording to the electrochemical techniques of LI showed very promising results against corrosion depending on the inhibitor concentrations. The inhibition efficiency of LI was additionally appraised at three diverse temperatures, and the results disclosed that the inhibition efficiency is decreased. Additionally, the theoretical aspects illuminated that the main active ingredients of LI have a proclivity to coagulate on the steel substrates allowing these areas to paradigm a protecting layer on the steel surfaces. This behavior is in provision of investigational results. Statistical studies were used to examine the consequence of chief constraints (i.e., inhibitor concentration, temperature, and rotation speed) on the inhibition efficiency and the rate of corrosion of steel alloy 4130. The inhibitive effect of LI in contradiction of the corrosion of steel alloy 4130 surfaces is considered by resources of DFT/6-31G(d) calculations. The quantum chemical parameters interrelated to the inhibition efficiency are considered.

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“…In addition, iron alloys are commonly used in medical, military and aerospace applications because they exhibit enhanced mechanical and tensile strength together with their improved conductivity and ductility properties [2]. Among iron alloys, carbon steel is employed as a construction material for pipeline transport production and processing related industries [2][3][4]. The reason is that carbon steel exhibits enhanced mechanical strength and low cost.…”

Section: Introductionmentioning

confidence: 99%

“…Black steel is important in applications where there is no need for galvanized steel. Black steel pipes are seamless, uncoated and widely used for transporting either gas or water for commercial or residential buildings because these pipes are better fire retardants than galvanized pipes and due to the high strength of the steel [4].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the identification and development of new groups of protective compounds able to attenuate this problem are required. Several methods have been employed for the metal corrosion protection such as application of coatings [4,10,11] and the use of corrosion inhibitors [8,12,13]; one of the most widespread methods against corrosion is the use of organic compounds. Organic inhibitors are very efficient for mild steel, due to the fact that they contain atoms such as sulfur, oxygen and nitrogen that result in the enhanced adsorption onto a metal surface [14].…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Protection Evaluation of Mild Steel: The Role of Hybrid Materials Loaded with Inhibitors

Kartsonakis

Charitidis

2020

Applied Sciences

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In the present work, an assessment of the corrosion behavior of mild steel in the presence of an organic corrosion inhibitor loaded into hybrid composite materials is performed. Hybrid organic–inorganic nanocontainers based on cerium and titanium oxides were fabricated via a combination of radical polymerization together with the coprecipitation method and sol-gel technique. The corrosion inhibition role of these hybrid materials loaded with an inhibitor is considered. A set of characterization assays addressing morphology, composition and structural aspects of the exposed steels is illustrated, along with electrochemical evaluations. The results reveal enhanced stimuli responsive anticorrosion ability of the produced hybrid materials. Furthermore, upon corrosion, new compounds are formed onto the exposed areas of the treated metals. The conducted experiments shed light on the corrosion mechanisms for steel alloys as well as the actuation of the fabricated composite materials, paving the way for future developments in this area.

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Epoxy coatings modified with a new cerium phosphate inhibitor for smart corrosion protection of steel

Cited by 119 publications

References 27 publications

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

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

Optimization of the Influencing Variables on the Corrosion Property of Steel Alloy 4130 in 3.5 wt.% NaCl Solution

Corrosion Protection Evaluation of Mild Steel: The Role of Hybrid Materials Loaded with Inhibitors

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