Corrosion Inhibition Performance Research Articles

Development of different chain lengths ionic liquids as green corrosion inhibitors for oil and gas industries: Experimental and theoretical investigations

Three corrosion inhibitors with different anionic carbon chains were investigated: 1-(2-methoxy-2-oxoethyl)-3-methylimidazolium bromide (ILR1), 1-(2-ethoxy-2-oxoethyl)-3-methylimidazolium bromide (ILR2), and 1-(2-propoxy-2-oxoethyl)-3-methylimidazolium bromide (ILR3). The corrosion inhibition performance of ILR1, ILR2, and ILR3 on A1010 steel in 1 M HCl at 298 K was examined using electrochemical experiments, weight loss measurements, Fourier transform infrared spectroscopy coupled with attenuated total reflectance, atomic force microscopy, scanning electron microscopy, and theoretical computations. The synergistic action of bromide ions is used in conjunction with three mixed-type inhibitors with high inhibitory effectiveness. The order of corrosion resistance is ILR1 < ILR2 < ILR3, which is based on practical and theoretical research that demonstrates that the inhibitory action improves with the length of the alkyl chain attached to the imidazolium ring. At an optimum inhibitor concentration of 1 mM/L, ILR1, ILR2, and ILR3 show 90 %, 92 %, and 95 % inhibition efficiency, respectively. Three inhibitors were adsorbed in accordance with the Langmuir adsorption isotherm, including physisorption and chemisorption.

Effect of Temperature on Adsorption Behaviour and Corrosion Inhibitive Performance of Aqueous Extract of Green Inhibitor Leaves in Mixed Acids

Abstract: Leaf extract of green inhibitor (commonly known as Borrachero or Morning Glory) is found to be efficacious on corrosion of mild steel in mixed acid solution in paste form using traditional weight loss measurements techniques. For different solution concentrations in the form of paste at various temperatures, corrosion inhibition efficiency of Borrachero leaf extracts was assessed with the help of weight loss measurements. For comparison, date of rust dissolution in liquid state has also been furnished. Different temperature conditions were appraised for the sake of overall inhibitor efficiency. From the results, Borrachero leaves have a good potential, at certain range of temperature, as eco-friendly, green, corrosion inhibitor. Keywords: Mild steel, corrosion, inhibitor, dissolution, Borrachero leaf

Development of Highly Efficient Dual-Purpose Gas Hydrate and Corrosion Inhibitors for Flow Assurance Application: An Experimental and Computational Study

Gas hydrate and corrosion inhibitors are widely used to ensure successful and economic hydrocarbon stream flow inside the oil and gas pipelines. However, compatibility problems are observed during their co-injection into the flowlines as they have different molecular chemistry. Modifying effective gas hydrate inhibitors, such as polyvinylcaprolactam (PVCap), with some active functional groups in corrosion inhibition, can overcome compatibility issues. In this study, maleic anhydride was used as a cheap monomer to synthesize ionic N-vinyl caprolactam/maleic-based copolymers (P(VCap-co-MA)) as potential dual-purpose gas hydrate and corrosion inhibitors. The gas hydrate experiments showed that the inhibitors effectively inhibited natural gas hydrate formation and a maximum subcooling temperature of 14.6 °C achieved in a solution containing 2500 ppm P(VCap-co-MA)-3. The molecular dynamics simulation revealed that P(VCap-co-MA)-3 reduced the gas concentration in the liquid phase and occupied its adsorption sites on the hydrate surface to form a steric hindrance effect, inhibiting the gas hydrate formation. Electrochemical measurements indicated that P(VCap-co-MA)s significantly suppressed steel corrosion in oilfield-produced water saturated with H2S and CO2. P(VCap-co-MA)-3 and P(VCap-co-MA)-5 provided the highest protection of 96.9 and 96.1% in H2S and CO2 media, respectively. Moreover, simulation studies demonstrated that the inhibitors are strongly adsorbed on the steel surface to form a barrier layer on the surface, protecting against corrosive electrolytes. These findings suggest that the modification of a gas hydrate inhibitor improves not only its corrosion and gas hydrate inhibition performance but also decreases the operation costs for flow assurance in the oil and gas pipelines.

Investigating the synthesized sodium gluconate‐loaded chitosan microspheres on mild steel corrosion inhibition in acidic medium

In this research, the sodium gluconate‐loaded chitosan microspheres (SG/CM) are prepared by negative pressure impregnation after chitosan (CS) hydrothermally synthesized with vanillin (VA) to form chitosan microspheres (CM), which is in shape of ellipsoidal spheroid. The structures of the prepared micron materials are investigated by Fourier transform infrared spectroscopy (FTIR), while tungsten filament scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to characterize the morphology of the prepared. Moreover, the thermogravimetric characterization reveals that loading sodium gluconate made it more thermally stable. The corrosion inhibition performance of CS, CM, and SG/CM is investigated in 0.1 mol/L HCl by electrochemical impedance spectroscopy (EIS), indicating an increase efficiency for inhibitors at higher concentrations, and the optimum is achieved by SG/CM at 200 mg/L, corresponding to weight loss measurements. The potentiodynamic polarization (PDP) test shows the best inhibition efficiency, 92.01% for SG/CM, which is superior to 52.23% for CS and 75.91% for CM. The surface features of corroded samples are investigated by Leica optical microscopy. Additionally, the inhibition mechanism of SG/CM is studied by building the Langmuir adsorption model, revealing that the inhibitory molecule occupies only one site on the themetallic surface.

Fabrication of chemisorbed film on ultrafine-grained steels for corrosion inhibition in saline solution

The corrosion inhibition performance and film-forming mechanism of benzotriazole on ultrafine-grained steels in 3.5 wt.% NaCl solution was studied by electrochemical impedance spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and surface morphology analysis. The results show that grain ultra-refinement leads to excellent inhibition performance and different film-forming mechanisms of benzotriazole on low alloy steels. This attributes to the large increase in the grain boundary densities that accelerated the adsorption of benzotriazole and induced chemisorption of benzotriazole on the surface of low alloy steels. The results allow for a comprehensive understanding of the corrosion inhibition and film-forming mechanism of benzotriazole on mild steel in near-neutral saline solutions.

Interaction of newly synthesized dipeptide Schiff bases with mild steel surface in aqueous HCl: Experimental and theoretical study on thermodynamics, adsorption and anti-corrosion characteristics

Adsorption behavior and anti-corrosion propensity of three newly synthesized dipeptide Schiff bases are investigated using mild steel submerged in aqueous 1 M HCl. Electrochemical techniques (potentiodynamic polarization and electrochemical impedance spectroscopy) as well as gravimetric method are employed to ascertain the effect of concentration, temperature and immersion time on corrosion inhibition performance of the inhibitors. It is revealed that the Schiff base condensed between glycyl-l-tyrosine and indole-3-carboxaldehyde (GTI) imparts better inhibitory effect (greater than 98% inhibition efficiency) than those condensed between the same aldehyde and glycyl glycine (GGI) or glycyl-l-glutamine (GGMI). Thermodynamic parameters are evaluated employing Langmuir adsorption isotherm model to explain the mechanism of adsorption of inhibitor molecules on mild steel. Additional π-electron density of the aromatic moiety present in GTI seems to be responsible behind it. MD simulation study reveals almost parallel orientation of inhibitor molecules with respect to the metal surface. Interaction energy enumerated through MD simulation matches exactly with inhibitory trend. Following DFTB + calculation, charge transfer from the inhibitor to metal surface is established. Scanning electron microscopy images provide visual support to the effective corrosion inhibition by dipeptide Schiff bases.

Synthesis of a Hydroxyl-Containing Corrosion Inhibitor and Its Inhibitory Performance on N80 Steel in Hydrochloric Acid Solution

In the process of petroleum exploitation, in order to effectively inhibit the corrosion damage of acid to metal equipment. Mannich base corrosion inhibitors are generally added to inhibit the corrosion damage of acid. In order to enhance the solubility of Mannich base corrosion inhibitor. This paper intends to introduce hydrophilic groups to enhance the solubility of the Mannich base corrosion inhibitor. In this paper, two efficient corrosion inhibitors 3-(2-hydroxyethylamino)-1-phenylpropan-1-one (MY1) and 3-(2-aminoethylamino)-1-phenylpropan-1-one (MY2), were synthesized based on the Mannich reaction, using formaldehyde, acetophenone and ethanolamine/ethylenediamine as reaction raw materials. The corrosion inhibition performance of the inhibitor on N80 steel in 15% (mass fraction) hydrochloric acid solution was studied by means of the static weight loss method, electrochemical test and optical contact angle analysis. It could be seen from the static weight loss method that the corrosion rate in the hydrochloric acid solution before and after adding 0.7% (mass fraction) corrosion inhibitor concentration decreased from 129.39 g·m−2·h−1 to 1.45 g·m−2·h−1 and 2.79 g·m−2·h−1, respectively. The corrosion inhibition rate could reach 98%, indicating that both inhibitors had good corrosion inhibition performance, and the corrosion inhibition effect of MY1 was better than that of MY2. It was found from the electrochemical tests that the two inhibitors were mixed corrosion inhibitors mainly inhibiting the anodic reaction, and both inhibitors belonged to spontaneous adsorption, and their adsorption behaviors followed the Langmuir adsorption isotherm. In addition, the surface of N80 steel was characterized by SEM, EDS elemental mapping and contact angle measurement. The results show that a dense hydrophobic film is formed on the surface of the steel sheet after the addition of a corrosion inhibitor, which prevents corrosion.

Facile Preparation of a Robust Superhydrophobic SiO2/Epoxy Composite Coating with Favorable Corrosion and Scale Inhibition Performance

Superhydrophobic surfaces with good water repellency are widely studied, but their complex preparation process and poor durability limit their practical application. Herein, a simple and environmentally friendly method to prepare a robust superhydrophobic coating is proposed and its application in the field of corrosion prevention and scale inhibition is explored. Environmentally friendly and low‐cost SiO2 nanoparticles modified by octadecyl trimethoxysilane (ODMS) are mixed with epoxy resin and sprayed onto the surface of metal substrates. The prepared ODMS–SiO2/epoxy resin composite coating has a water contact angle (WCA) of 161.5°, exhibiting excellent superhydrophobicity. In addition, the prepared coating maintains the original microstructure and good superhydrophobicity (WCA is 155°) after 30 cycles of wear test under 200 g load, showing excellent mechanical stability. The inherent superhydrophobic property also endows the coating with excellent corrosion and scale inhibition. The impedance of the composite coating is two orders of magnitude higher than that of the pure epoxy coating. The scaling amount of superhydrophobic composite coating in 24 h is 47% of that of epoxy resin coating. This work provides a new strategy for constructing multifunctional superhydrophobic coatings with excellent mechanical stability, corrosion resistance, and scale inhibition.

Unraveling the synergistic effect of cationic and anionic salt on the corrosion inhibition performance of Garcinia gummi-gutta leaf extract against mild steel in HCl medium

Corrosion is a global concern as it poses major economic losses and safety concerns. An effective remedial measure has been the use of green corrosion inhibitors. Even though green corrosion inhibitors are nontoxic and biodegradable; its corrosion inhibition efficiency is less when compared to conventional synthetic inhibitors. The present work provides experimental evidences regarding the synergistic effect of cationic or anionic salt towards augmenting the corrosion inhibition efficiency of green inhibitors. Precisely, a thorough comparative analysis of the corrosion inhibition potential of the plant extract with either cationic or anionic salts has been carried out that provides sound basis for the effective industrial use of the technology. The corrosion inhibition performance of Garcinia gummi-gutta leaf extract along with 10 mM KI and 10 mM zinc acetate by weight loss method and electrochemical technique was analyzed. It was found that 6000 ppm plant leaf extract with KI has a corrosion inhibition efficacy of 97% and 91.6%, as analyzed by electrochemical impedance (EIS) and potentiodynamic polarisation (PDP) studies respectively. When combined with zinc acetate, 6000 ppm plant leaf extract exhibits an inhibitory efficacy of 89.7% and 84%, under EIS and PDP analysis respectively. UV Visible Spectroscopy was used to affirm the strong interaction of ionic salts with the heteroatom present in plant leaf extract and surface characterization using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) indicated the formation of protective layer of the plant extract on the mild steel surface. The findings support the notion that KI is more effective than zinc acetate at enhancing Garcinia gummi-gutta leaf extract's capacity for corrosion inhibition.

Experimental and Theoretical Studies of the Corrosion Inhibition Performance of Fatty Acid-based Ionic Liquids for Mild Steel in 1 M HCl: Effects of the Varied Alkyl Chain Length in the Anionic Group

Five fatty acid-based ionic liquids (FAILs) with various anionic alkyl chain lengths are synthesized, namely methyltrioctylammonium butyrate ([N8881][C4:0]), methyltrioctylammonium caproate ([N8881][C6:0]), methyltrioctylammonium octanoate ([N8881][C8:0]), methyltrioctylammonium laurate ([N8881][C12:0]), and methyltrioctylammonium palmitate ([N8881][C16:0]), to investigate the potential effects of anionic alkyl chains on their corrosion inhibition property for mild steel in 1 M HCl solution via X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, contact angle measurements, electrochemical measurements, and weight loss measurements. The results reflect that the FAIL inhibitor can adsorb on the surface of mild steel to form a protective film and effectively inhibit the corrosion. [N8881][C8:0] exhibits the optimal inhibition efficiency (96.94%) in comparison to [N8881][C4:0] (80.73%), [N8881][C6:0] (89.34%), [N8881][C12:0] (90.69%), and [N8881][C16:0] (74.42%). It is speculated that the varied anionic alkyl chain length may change the intensity of the protective film to affect the inhibition efficiency. The in-depth analysis by molecular dynamic simulation confirms that [N8881][C8:0] with the same anionic and cationic alkyl chain lengths shows the most ordered and compact film on the mild steel surface. The present study focuses on the effects of the anionic alkyl chain on the corrosion inhibition performance and provides novel insights into the design and development of effective and eco-friendly ionic liquids as corrosion inhibitors.

Sodium Succinate as a Corrosion Inhibitor for Carbon Steel Rebars in Simulated Concrete Pore Solution.

The inhibiting performance of sodium succinate (Na2C4H4O4) was evaluated as an organic environmentally friendly corrosion inhibitor for carbon steel rebars in 0.6 M Cl- simulated concrete pore solution. Potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) measurements were utilized to evaluate the inhibitor performance at different temperatures and concentrations. The investigated corrosion inhibitor showed strong corrosion inhibition performance as it adsorbs on the surface of the rebar, creating a protective adsorption film. According to PDP, the inhibitor is classified as a mixed-type inhibitor with an inhibitor efficiency of 77, 69, 59, and 54% for 25, 35, 45, and 55 °C, respectively. EIS validated the PDP tests, showing that sodium succinate displaces the water molecules at the interface, creating an adsorption film by complexing with ferrous ions. The film thickness was calculated, and sodium succinate was able to produce a thicker protective film (span of nanometers) relative to the reference at every temperature. The adsorption of sodium succinate follows the Temkin adsorption isotherm. ΔG0ads was found to be -32.75 kJ/mol, indicating that the inhibitor adsorption is a combined physisorption and chemisorption process. Different surface characterizations were utilized to substantiate the adsorption of sodium succinate, these include scanning electron microscopy, energy-dispersive X-ray spectroscopy, and micro-Raman spectroscopy. Finally, quantum chemical calculations showed that the delocalized electrons in the carboxyl group have high HOMO energies and electrostatic potential, which facilitates the adsorption of sodium succinate corrosion inhibitor onto the carbon steel rebar surface.

Insight on the corrosion inhibition performance of Glebionis coronaria plant extract in various acidic mediums

Insight on the corrosion inhibition performance of Glebionis coronaria plant extract in various acidic mediums

Inhibition of hydrogen evolution and corrosion protection of negative electrode of lead-acid battery by natural polysaccharide composite: Experimental and surface analysis

The investigated research illustrates the synthesis of composite polymer (GG-VA) using natural polysaccharide (Guar Gum/GG) and vinyl acetate (VA) and screening their inhibitive performance for the hydrogen gas evolution and corrosion inhibition of lead-acid battery negative electrode, i.e., Pb in 5.0 M H2SO4. The developed inhibitor is an environmentally friendly biological molecule and has been used for lead acid batteries for the first time as an additive. The methodology used to evaluate GG-VA inhibitive performance included hydrogen evolution and electrochemical methods, i.e., EIS and PDP. The corrosion inhibition performance of GG-VA is 88.57 %. The Pb surface was screened for GG-VA adsorption via SEM and AFM. The experimental data confirmed the reduction in hydrogen gas evolution with the addition of GG-VA. The EIS result supports the increasing Rct values with the rising GG-VA amount corresponding to the GG-VA adsorption. PDP data reveals the mixed inhibition action and reduction in icorr values with the addition of GG-VA. The increasing temperature causes a decrease in GG-VA performance. GG-V adsorption over the Pb surface was best described by Langmuir isotherm. The Ea data reveals the increase in the energy barrier for corrosion reaction and H2 gas evolution in the presence of GG-VA. The SEM and AFM support the adsorbed layer of GG-VA formation at the Pb surface.

Corrosion Inhibition of Rumex vesicarius Mediated Chitosan-AgNPs Composite for C1018 CS in CO2-Saturated 3.5% NaCl Medium under Static and Hydrodynamic Conditions

Rumex vesicarius (RVE) mediated chitosan–AgNPs composite was produced in situ by using an aqueous extract of Rumex vesicarius leaves as the reducing agent to reduce Ag+ to Ag0. The synthesized composite was evaluated as a sweet (CO2) corrosion inhibitor (CI) for C1018 carbon steel (CS) in 3.5 wt% NaCl solution under static and hydrodynamic conditions. The corrosion inhibitive performance was evaluated using electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), and potentiodynamic polarization (PDP) techniques, as well as scanning electron microscopy (SEM)/energy dispersive X-ray spectroscopy (EDAX), and atomic force microscopy (AFM) on corroded C1018 CS without and with additives. The effect of concentration, immersion time, temperature, and rotation speed on the CI performance of the composite was also investigated. The corrosion inhibitive effect increased with increasing composite dosage, with the highest inhibition efficiency (IE) acquired at the maximum composite dosage of 0.3%. Beyond this concentration, the IE decline with increasing concentration. Furthermore, IE was found to increase with immersion time and decline with a temperature rise from 25 to 40 °C, with the optimum temperature of 60 °C found to accelerate corrosion without and with RVE-mediated Chi–AgNPs composite. Under high shear stress, the Chi–AgNPs composite exhibits moderate corrosion inhibition under hydrodynamic conditions. The surface analysis results validate the formation of a protective covering due to composite adsorption on the CS surface. The RVE-mediated chitosan–AgNPs composite could be recommended as a CI for C1018 CS in sweet (CO2) corrosion environments at ambient temperature.

Corrosion inhibition performance of carbon steel in 1 N hydrochloric acid by an aqueous extract of Syzygium cumini Linn (SCL) plant leaves

Corrosion inhibition performance of carbon steel in 1 N hydrochloric acid by an aqueous extract of Syzygium cumini Linn (SCL) plant leaves

The non-crystalline metal-organic framework for corrosion inhibitor behavior in sodium chloride solution

The metal-organic frameworks (MOFs), namely ZIF-62, have the ligand of imidazole and benzimidazole, which are effective corrosion inhibitors. In this context, ZIF-62 is an ideal candidate in marine corrosion protection. However, it is not reported till present. Here, the non-crystalline ZIF-62 ( g -ZIF-62), a novel corrosion inhibitor carrier, is developed by melting the ZIF-62 crystal ( c -ZIF-62) and its corrosion inhibition performance on AZ91 Mg alloy is investigated by electrochemical measurement. The results show that ZIF-62 could effectively inhibit the Mg alloy from corrosion. More significantly, g -ZIF-62 shows a better corrosion inhibition effect, and the corrosion inhibition efficiency ( η ) is up to 83.6%. The glassy grain boundaries of g -ZIF-62 disappear when melting the c -ZIF-62, which hinders the invasion of corrosive media, e.g. H 2 O molecules, Na + and Cl − , to improve the stability in seawater. More importantly, the molar ratio of imidazole to benzimidazole is adjusted by the reaction time ( T m ). Given the significant steric hindrance, the much content of benzimidazole in g -ZIF-62(48 h) have high viscosity under T m , leading to the formation of a pyknotic glass for the corrosion inhibitors. Thus, this study not only highlights the potential of ZIF-62 as a corrosion inhibitor, but also provides fresh insights for the application of non-crystalline MOF in harsh seawater corrosion. • Corrosion inhibitor for metal–organic frameworks is reported. • The stability of MOFs in sodium chloride solution was improved by amorphous method. • The effect of synthesis time and corrosion mechanism were investigated. • ZIF-62 is used for the first time as corrosion inhibitor on the surface of AZ91 Mg alloy.

Preparation of inorganic-polymer nano-emulsion inhibitor for corrosion resistance of steel reinforcement for concrete

In this work, the effect of inorganic–organic corrosion inhibitor composition on corrosion inhibition rate was studied through electrochemical accelerated corrosion experiments and ambient atmosphere corrosion experiments. The corrosion inhibitor performance was analyzed to establish the relationship between inhibitor composition, steel temperature, inhibitor temperature, treatment time and corrosion inhibition rate. The effect of nano-emulsion type on the corrosion inhibition rate of reinforcing steel shows that different types of nano-emulsions can increase the self-corrosion potential and reduce the corrosion current of reinforcing steel, improving the corrosion resistance of reinforcing steel. The highest corrosion inhibition rate of 72.1% could be achieved with the addition of fluorocarbon nano-emulsion DF-1 to the corrosion inhibitor. This indicates that among the studied polymer nano-emulsions, fluorocarbon nano-emulsion DF-1 is the best polymer nano-emulsion corrosion inhibitor with a better content of 5%.

Adsorption and corrosion inhibition performance of rice bran extract on carbon steel in aqueous chloride solution: Experimental, computational and theoretical studies

In this study, an ecofriendly corrosion inhibitor made of waste rice bran was produced to reduce corrosion caused by chloride on reinforcement. Electrochemical results revealed that with increasing inhibitor concentration the inhibition efficiency of the rice bran extract (RBE) reached the maximum value of 98% at an optimum concentration of 4.5%. The existence of carbonaceous passive film over the steel surface was established by X-ray photoelectron spectroscopy (XPS). Quantum mechanics and Molecular simulations evidenced the adsorption of phytochemicals onto the steel surface thus, affirming the inhibition action of the rice bran extract.

Effect of Polyaniline and Graphene Oxide Composite Powders on the Protective Performance of Epoxy Coatings on Magnesium Alloy Surfaces

Composite fillers are often used to improve the protective properties of coatings. To obtain a high protective performance of epoxy coatings for magnesium alloys, polyaniline (PANI) and graphene oxide (GO) composite powders were selected because of their corrosion inhibition and barrier performance, respectively. The paper mainly focuses on the effect of the preparation methods of the composite powders on the protective performance. PANI and GO composite powders were prepared by in situ polymerization and blending, respectively. First, the composite powder was characterized by X-ray diffractometer, Fourier transform infrared spectroscopy, and scanning electron microscopy. Then, the different composite powders and pure PANI powder were dispersed uniformly in epoxy resin, and the coating was prepared on the surface of the AZ91D magnesium alloy and studied by an electrochemical impedance test, adhesion strength test and physical properties test. The results show that the impedance value of the coating with the added PANI and GO composite powders by in situ polymerization was 4 × 109 Ω·cm2 and higher than that with the added pure PANI (4 × 109 Ω·cm2) and PANI and GO mixed powders (1 × 109 Ω·cm2) after 2400 h immersion in a 3.5% NaCl solution; the former also had better flexibility, ss impact resistance, and adhesion strength. Compared with the direct blending method, the PANI and GO polymerization powders can exert the shielding effect of GO and PANI corrosion inhibition better and achieve a better protective effect on the magnesium alloy.

Development of Metallo (Calcium/Magnesium) Polyurethane Nanocomposites for Anti-Corrosive Applications

Long-term corrosion protection of metals might be provided by nanocomposite coatings having synergistic qualities. In this perspective, rapeseed oil-based polyurethane (ROPU) and nanocomposites with calcium and magnesium ions were designed. The structure of these nanocomposites was established through Fourier-transform infrared spectroscopy (FT-IR). The morphological studies were carried out using scanning electron microscopy (SEM) as well as transmission electron microscopy (TEM). Their thermal characteristics were studied using thermogravimetric analysis (TGA). Electrochemical experiments were applied for the assessment of the corrosion inhibition performance of these coatings in 3.5 wt. % NaCl solution for 7 days. After completion of the test, the results revealed a very low icorr value of 7.73 × 10-10 A cm-2, a low corrosion rate of 8.342 × 10-5 mpy, impedance 1.0 × 107 Ω cm2, and phase angle (approx 90°). These findings demonstrated that nanocomposite coatings outperformed ordinary ROPU and other published methods in terms of anticorrosive activity. The excellent anti-corrosive characteristic of the suggested nanocomposite coatings opens up new possibilities for the creation of advanced high-performance coatings for a variety of metal industries.