Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution
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2021
Authors
Marunkić, Dunja
Pejić, Jovanka

Jegdić, Bore

Linić, Suzana

Perišić, Jasmina

Radojković, Bojana

Marinković, Aleksandar D.

Article (Published version)

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The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side cha...in than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed.
Keywords:
understanding localized corrosion / intermetallic phases common / alluminium- alloysSource:
Journal of Electrochemical Society, 2021, 168, 8, 081501-Publisher:
- IOP Publishing
Funding / projects:
DOI: 10.1149/1945-7111/ac1895
ISSN: 0013-4651; 1945-7111
WoS: 000683711400001
Scopus: 2-s2.0-85112558422
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IHTMTY - JOUR AU - Marunkić, Dunja AU - Pejić, Jovanka AU - Jegdić, Bore AU - Linić, Suzana AU - Perišić, Jasmina AU - Radojković, Bojana AU - Marinković, Aleksandar D. PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4787 AB - The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side chain than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed. PB - IOP Publishing T2 - Journal of Electrochemical Society T1 - Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution VL - 168 IS - 8 SP - 081501 DO - 10.1149/1945-7111/ac1895 ER -
@article{ author = "Marunkić, Dunja and Pejić, Jovanka and Jegdić, Bore and Linić, Suzana and Perišić, Jasmina and Radojković, Bojana and Marinković, Aleksandar D.", year = "2021", abstract = "The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side chain than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed.", publisher = "IOP Publishing", journal = "Journal of Electrochemical Society", title = "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution", volume = "168", number = "8", pages = "081501", doi = "10.1149/1945-7111/ac1895" }
Marunkić, D., Pejić, J., Jegdić, B., Linić, S., Perišić, J., Radojković, B.,& Marinković, A. D.. (2021). Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of Electrochemical Society IOP Publishing., 168(8), 081501. https://doi.org/10.1149/1945-7111/ac1895
Marunkić D, Pejić J, Jegdić B, Linić S, Perišić J, Radojković B, Marinković AD. Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of Electrochemical Society. 2021;168(8):081501. doi:10.1149/1945-7111/ac1895 .
Marunkić, Dunja, Pejić, Jovanka, Jegdić, Bore, Linić, Suzana, Perišić, Jasmina, Radojković, Bojana, Marinković, Aleksandar D., "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution" in Journal of Electrochemical Society, 168, no. 8 (2021):081501, https://doi.org/10.1149/1945-7111/ac1895 . .