TY  - JOUR
AU  - Jeslina, V.
AU  - Kirubavathy, S.J.
AU  - Al-Hashem, A.
AU  - Rajendran, S.
AU  - Joany, R.M.
AU  - Lacnjevac, C.
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6209
AB  - The inhibitive effect of a seaweed (SM) alcoholic extract on MS corrosion immersed in 1 M HCl, for 30 min, was evaluated by the WL method and PPD technique. The protective film was investigated by the Vickers hardness test. WL revealed that 500 ppm SM offered 84 % IE against MS corrosion in 1 M HCl. The inhibitor molecules adsorption onto the metal surface obeyed Langmuir’s adsorption isotherm. The R2 value was very high (0.998). The PPD study showed that Ecorr slightly shifted to the anodic side. It was inferred that SM functions as a mixed type of corrosion inhibitor, since the shifts were relatively small. In SM presence, LPR value increased and Icorr decreased. Due to the blanket effect (formation of a protective film on the metallic surface, which was found to be a monolayer, blocking anodic and cathodic sites), the electrons transfer from the metal into the solution was blocked. Vickers hardness of the inhibited MS surface was lower than that of the polished one, but higher than that of the corroded one. The outcome of the study may be used in the pickling industry, where HCl is used to remove the rust from the metal surface, simultaneously not attacking it. © 2023, Sociedade Portuguesa de Electroquimica. All rights reserved.
T2  - Portugaliae Electrochimica Acta
T2  - Portugaliae Electrochimica Acta
T1  - Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum
EP  - 165
IS  - 2
SP  - 151
VL  - 41
DO  - 10.4152/pea.2023410204
ER  - 

@article{
author = "Jeslina, V. and Kirubavathy, S.J. and Al-Hashem, A. and Rajendran, S. and Joany, R.M. and Lacnjevac, C.",
year = "2023",
abstract = "The inhibitive effect of a seaweed (SM) alcoholic extract on MS corrosion immersed in 1 M HCl, for 30 min, was evaluated by the WL method and PPD technique. The protective film was investigated by the Vickers hardness test. WL revealed that 500 ppm SM offered 84 % IE against MS corrosion in 1 M HCl. The inhibitor molecules adsorption onto the metal surface obeyed Langmuir’s adsorption isotherm. The R2 value was very high (0.998). The PPD study showed that Ecorr slightly shifted to the anodic side. It was inferred that SM functions as a mixed type of corrosion inhibitor, since the shifts were relatively small. In SM presence, LPR value increased and Icorr decreased. Due to the blanket effect (formation of a protective film on the metallic surface, which was found to be a monolayer, blocking anodic and cathodic sites), the electrons transfer from the metal into the solution was blocked. Vickers hardness of the inhibited MS surface was lower than that of the polished one, but higher than that of the corroded one. The outcome of the study may be used in the pickling industry, where HCl is used to remove the rust from the metal surface, simultaneously not attacking it. © 2023, Sociedade Portuguesa de Electroquimica. All rights reserved.",
journal = "Portugaliae Electrochimica Acta, Portugaliae Electrochimica Acta",
title = "Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum",
pages = "165-151",
number = "2",
volume = "41",
doi = "10.4152/pea.2023410204"
}

Jeslina, V., Kirubavathy, S.J., Al-Hashem, A., Rajendran, S., Joany, R.M.,& Lacnjevac, C.. (2023). Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum. in Portugaliae Electrochimica Acta, 41(2), 151-165.
https://doi.org/10.4152/pea.2023410204

Jeslina V, Kirubavathy S, Al-Hashem A, Rajendran S, Joany R, Lacnjevac C. Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum. in Portugaliae Electrochimica Acta. 2023;41(2):151-165.
doi:10.4152/pea.2023410204 .

Jeslina, V., Kirubavathy, S.J., Al-Hashem, A., Rajendran, S., Joany, R.M., Lacnjevac, C., "Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum" in Portugaliae Electrochimica Acta, 41, no. 2 (2023):151-165,
https://doi.org/10.4152/pea.2023410204 . .

TY  - JOUR
AU  - Jeslina, V.
AU  - Kirubavathy, S.J.
AU  - Al-Hashem, A.
AU  - Rajendran, S.
AU  - Lacnjevac, C.
AU  - Joany, R.M.
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5991
AB  - The inhibitive effect of an alcoholic extract of a seaweed, namely, Sargassum Muticum, in controlling corrosion of mild steel in 0.5 N HCl has been evaluated by weight loss method (immersion period 1 day) and electrochemical techniques such as polarization study and AC impedance spectra. The protective film has been investigated by AFM and Vickers Hardness test. Weight loss method reveals that 500 ppm of inhibitor offers 99% inhibition efficiency to mild steel immersed in 0.5 N HCl. The adsorption of inhibitor molecules on the metal surface follows Langmuir adsorption isotherm. The R2 value is very high, 0.998. Polarization study reveals that the corrosion potential is slightly shifted to anodic side. It is inferred that the inhibitor solution functions as mixed type corrosion inhibitor. In the presence of the inhibitor, the linear polarization resistance (LPR) increases and the corrosion current decreases. Because of the Blanket effect (formation of a protective film on the metal surface blocking the anodic sites and cathodic), electron transfer from the metal to the bulk of the solution is blocked. AC impedance spectra confirm the formation of a protective film on the metal surface. As the inhibitor concentration increases, the Rct value increases and the double layer capacitance (Cdl) decreases, the impedance increases and the phase angle increases due to the blocking effect on the metal surface. It is found to be a monolayer of protective film. The Vickers hardness of the inhibited metal surface is lower than that of polished metal but higher than that of corroded surface. The average roughness, RMS roughness and maximum peak-to-valley height of inhibited metal surface are lower than those of corroded metal surface but higher than those of polished metal surface. The outcome of the study may be used in pickling industry where HCl is used to remove rust and at the same time metal surface is protected.
PB  - Russian Association of Corrosion Engineers
T2  - International Journal of Corrosion and Scale Inhibition
T1  - Inhibitive effect of an alcoholic extract of a seaweed Sargassum Muticum in controlling corrosion of mild steel in 0.5 N HCl
EP  - 1473
IS  - 4
SP  - 1454
VL  - 10
DO  - 10.17675/2305-6894-2021-10-4-6
ER  - 

@article{
author = "Jeslina, V. and Kirubavathy, S.J. and Al-Hashem, A. and Rajendran, S. and Lacnjevac, C. and Joany, R.M.",
year = "2021",
abstract = "The inhibitive effect of an alcoholic extract of a seaweed, namely, Sargassum Muticum, in controlling corrosion of mild steel in 0.5 N HCl has been evaluated by weight loss method (immersion period 1 day) and electrochemical techniques such as polarization study and AC impedance spectra. The protective film has been investigated by AFM and Vickers Hardness test. Weight loss method reveals that 500 ppm of inhibitor offers 99% inhibition efficiency to mild steel immersed in 0.5 N HCl. The adsorption of inhibitor molecules on the metal surface follows Langmuir adsorption isotherm. The R2 value is very high, 0.998. Polarization study reveals that the corrosion potential is slightly shifted to anodic side. It is inferred that the inhibitor solution functions as mixed type corrosion inhibitor. In the presence of the inhibitor, the linear polarization resistance (LPR) increases and the corrosion current decreases. Because of the Blanket effect (formation of a protective film on the metal surface blocking the anodic sites and cathodic), electron transfer from the metal to the bulk of the solution is blocked. AC impedance spectra confirm the formation of a protective film on the metal surface. As the inhibitor concentration increases, the Rct value increases and the double layer capacitance (Cdl) decreases, the impedance increases and the phase angle increases due to the blocking effect on the metal surface. It is found to be a monolayer of protective film. The Vickers hardness of the inhibited metal surface is lower than that of polished metal but higher than that of corroded surface. The average roughness, RMS roughness and maximum peak-to-valley height of inhibited metal surface are lower than those of corroded metal surface but higher than those of polished metal surface. The outcome of the study may be used in pickling industry where HCl is used to remove rust and at the same time metal surface is protected.",
publisher = "Russian Association of Corrosion Engineers",
journal = "International Journal of Corrosion and Scale Inhibition",
title = "Inhibitive effect of an alcoholic extract of a seaweed Sargassum Muticum in controlling corrosion of mild steel in 0.5 N HCl",
pages = "1473-1454",
number = "4",
volume = "10",
doi = "10.17675/2305-6894-2021-10-4-6"
}

Jeslina, V., Kirubavathy, S.J., Al-Hashem, A., Rajendran, S., Lacnjevac, C.,& Joany, R.M.. (2021). Inhibitive effect of an alcoholic extract of a seaweed Sargassum Muticum in controlling corrosion of mild steel in 0.5 N HCl. in International Journal of Corrosion and Scale Inhibition
Russian Association of Corrosion Engineers., 10(4), 1454-1473.
https://doi.org/10.17675/2305-6894-2021-10-4-6

Jeslina V, Kirubavathy S, Al-Hashem A, Rajendran S, Lacnjevac C, Joany R. Inhibitive effect of an alcoholic extract of a seaweed Sargassum Muticum in controlling corrosion of mild steel in 0.5 N HCl. in International Journal of Corrosion and Scale Inhibition. 2021;10(4):1454-1473.
doi:10.17675/2305-6894-2021-10-4-6 .

Jeslina, V., Kirubavathy, S.J., Al-Hashem, A., Rajendran, S., Lacnjevac, C., Joany, R.M., "Inhibitive effect of an alcoholic extract of a seaweed Sargassum Muticum in controlling corrosion of mild steel in 0.5 N HCl" in International Journal of Corrosion and Scale Inhibition, 10, no. 4 (2021):1454-1473,
https://doi.org/10.17675/2305-6894-2021-10-4-6 . .