PreprintArticleVersion 1This version is not peer-reviewed
Drimia maritima as a New Green Inhibitor for Al-Si Alloy, SAE Steel and Pure Al Samples in 0.5M NaCl Solution: Polarization and Electrochemical Impedance Analyses
Version 1
: Received: 29 August 2024 / Approved: 29 August 2024 / Online: 30 August 2024 (10:57:00 CEST)
How to cite:
Bonatti, R. S.; Costa, D.; Padilha, G.; Bortolozo, A. D.; Osório, W. R. Drimia maritima as a New Green Inhibitor for Al-Si Alloy, SAE Steel and Pure Al Samples in 0.5M NaCl Solution: Polarization and Electrochemical Impedance Analyses. Preprints2024, 2024082198. https://doi.org/10.20944/preprints202408.2198.v1
Bonatti, R. S.; Costa, D.; Padilha, G.; Bortolozo, A. D.; Osório, W. R. Drimia maritima as a New Green Inhibitor for Al-Si Alloy, SAE Steel and Pure Al Samples in 0.5M NaCl Solution: Polarization and Electrochemical Impedance Analyses. Preprints 2024, 2024082198. https://doi.org/10.20944/preprints202408.2198.v1
Bonatti, R. S.; Costa, D.; Padilha, G.; Bortolozo, A. D.; Osório, W. R. Drimia maritima as a New Green Inhibitor for Al-Si Alloy, SAE Steel and Pure Al Samples in 0.5M NaCl Solution: Polarization and Electrochemical Impedance Analyses. Preprints2024, 2024082198. https://doi.org/10.20944/preprints202408.2198.v1
APA Style
Bonatti, R. S., Costa, D., Padilha, G., Bortolozo, A. D., & Osório, W. R. (2024). <em>Drimia maritima</em> as a New Green Inhibitor for Al-Si Alloy, SAE Steel and Pure Al Samples in 0.5M NaCl Solution: Polarization and Electrochemical Impedance Analyses. Preprints. https://doi.org/10.20944/preprints202408.2198.v1
Chicago/Turabian Style
Bonatti, R. S., Ausdinir Danilo Bortolozo and Wislei R. Osório. 2024 "<em>Drimia maritima</em> as a New Green Inhibitor for Al-Si Alloy, SAE Steel and Pure Al Samples in 0.5M NaCl Solution: Polarization and Electrochemical Impedance Analyses" Preprints. https://doi.org/10.20944/preprints202408.2198.v1
Abstract
Abstract: The corrosion inhibition effects of Drimia maritima (L.) Stearn sin. Urginea matima (L.) Backer on three different materials, i.e. as-cast Al-7 wt.% Si alloy, SAE 1020 low carbon steel and commercially pure Al samples, into a stagnant and naturally aerated 0.5 M NaCl solution are evaluated. For this purpose, both the potentiodynamic polarization curves and electrochemical impedance spectroscopy with equivalent circuit are utilized. It is found that inhibition effect in-creases up to certain minor Drimia maritima content. Adsorption isotherms (e.g. Langmuir and Temkin) have indicated that all three examined material comprise physical adsorption mecha-nism. Al-Si alloys have attained inhibition efficiency of about 96% at 25 oC with 1250 ppm of Drimia maritima, and ~43% with 625 ppm at 45 oC. On the other hand, the cp. Al and SAE 1020 samples attain ~ 89% and 68% with 1250 ppm and 500 ppm at 25 oC, respectively. This clearly in-dicates that the dosage of Drimia maritima green inhibitor into NaCl solution posses certain sus-ceptibility for each distinctive material examined. Impedance parameters obtained by using CNLS (complex non-linear least squares simulations) are correlated and discussed.
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
