Innovative Method for Coating of Natural Corrosion Inhibitor Based on Artemisia vulgaris

Abstract

In this work, the production of a novel methodology for the application of natural corrosion inhibitors on steel, using an autoclave is presented. Tests were carried out using Artemisia vulgaris. The inhibitor was produced with a simple soxhlet extraction process using 15 g of Artemisia vulgaris and 260 mL of Ether. Once the inhibitor was produced, the steel was immersed in it, to form a coating that protects the material against corrosion. Thermogravimetry analyzes (TGA) were performed on the inhibitor, to determine the degradation temperature; it was observed that, at 321 °C, the loss of organic mass begins. After applying the inhibitor to the steel, the Fourier Transform Infrared Spectroscopy (FTIR) technique was used to determine the vibrational bands and the difference between the spectra for the steels before and after the coating was applied. For the evaluation of the method efficiency, Electrochemical Impedance Spectroscopy (EIS) and polarization resistance tests were performed, where Nyquist diagrams and Tafel curves were obtained, for steels with and without treatment. In this case, an increase of 93% in the corrosion resistance, and an 88% decrease in the corrosion rate were observed, proving that this methodology can be used to protect steel against corrosion and extend the steel’s useful life.

Growth Mechanisms of TaN Thin Films Produced by DC Magnetron Sputtering on 304 Steel Substrates and Their Influence on the Corrosion Resistance

“…The potentiodynamic polarization curves in the Tafel region for the different coatings, grown at different powers, are shown in Figure 9. It can be observed how the samples grown at 180, 190, 200, and 220 W move at anodic potentials with respect to austenitic 304 steel, which represents a more noble tendency of the surface [53]. Samples 160 W, 170 W, and 210 W, show cathodic potentials, which implies mor aggressive corrosion, as can be corroborated in Table 3.…”

Use of a Gemini-Surfactant Synthesized from the Mango Seed Oil as a CO2-Corrosion Inhibitor for X-120 Steel

“…During last 10 years, a lot of research work has been undertaken in many naturally occurring environmentally friendly which are extracts of plants fruits, leaves, roots, flowers, etc. which have been called green inhibitors [28][29][30][31][32][33]. As a result, green chemistry and the development of efficient, environmentally friendly corrosion inhibitors has become a significant point of focus within the oil and gas industry [34].…”

Development of saga (Abrus precatorius) seed extract as a green corrosion inhibitor in API 5l Grade B under 1m HCL solutions

“…The corrosion potential shifted in a negative direction, indicating the energy levels of the metal increased. Similar to [25], the change in E corr smaller than 85 mV suggests the change of the reaction mechanism related to the anodic/cathodic dissolving reaction. Eventually, the result in Fig.…”

“…The work [24] states that the combination of polar solvents is proven to gain a considerable amount of extract fully. At the same time, the study [25] argues that using autoclaves effectively extracts Artemisia vulgaris. The scientist reveals the ether solution through direct soxhlet extraction is sufficient to protect the metal by 93 % while depressing the corrosion rate by nearly 88 %.…”