TY  - JOUR
AU  - Marunkić, Dunja
AU  - Pejić, Jovanka
AU  - Jegdić, Bore
AU  - Marinković, Aleksandar
AU  - Radojković, Bojana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4978
AB  - The corrosion behaviour of high-strength AA7075 aluminium alloy in NaCl solution, without and in the presence of environmentally friendly corrosion inhibitors (Ce-chloride and Ce-citrate) in low concentrations (  lt 0.5 mM), was analysed. The degree of precipitation of the solid solution of AA7075 alloy was determined by measuring the electrical conductivity, while the surface morphology and appearance of intermetallic compounds before and after corrosion testing were analysed by SEM/EDS method. The general corrosion resistance of the tested alloy in NaCl solution and the degree of the inhibitory effect of the corrosion inhibitors were determined on the basis of electrochemical impedance spectroscopy and polarization measurements, while resistance to pit formation on the bases of E-pit. AA7075 alloy showed high resistance to general corrosion in the presence of both tested inhibitors, while resistance to pit formation was significantly higher in the presence of Ce-citrate (concentration 0.5 mM). Also, Ce-citrate present in NaCl solution at lower concentrations provides satisfactory resistance of AA7075 alloy to general and pitting corrosion. A mechanism of protective action of Ce-citrate inhibitor has been proposed.
T2  - Materials and Corrosion-Werkstoffe Und Korrosion
T1  - Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy
DO  - 10.1002/maco.202112900
ER  - 

@article{
author = "Marunkić, Dunja and Pejić, Jovanka and Jegdić, Bore and Marinković, Aleksandar and Radojković, Bojana",
year = "2022",
abstract = "The corrosion behaviour of high-strength AA7075 aluminium alloy in NaCl solution, without and in the presence of environmentally friendly corrosion inhibitors (Ce-chloride and Ce-citrate) in low concentrations (  lt 0.5 mM), was analysed. The degree of precipitation of the solid solution of AA7075 alloy was determined by measuring the electrical conductivity, while the surface morphology and appearance of intermetallic compounds before and after corrosion testing were analysed by SEM/EDS method. The general corrosion resistance of the tested alloy in NaCl solution and the degree of the inhibitory effect of the corrosion inhibitors were determined on the basis of electrochemical impedance spectroscopy and polarization measurements, while resistance to pit formation on the bases of E-pit. AA7075 alloy showed high resistance to general corrosion in the presence of both tested inhibitors, while resistance to pit formation was significantly higher in the presence of Ce-citrate (concentration 0.5 mM). Also, Ce-citrate present in NaCl solution at lower concentrations provides satisfactory resistance of AA7075 alloy to general and pitting corrosion. A mechanism of protective action of Ce-citrate inhibitor has been proposed.",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy",
doi = "10.1002/maco.202112900"
}

Marunkić, D., Pejić, J., Jegdić, B., Marinković, A.,& Radojković, B.. (2022). Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy. in Materials and Corrosion-Werkstoffe Und Korrosion.
https://doi.org/10.1002/maco.202112900

Marunkić D, Pejić J, Jegdić B, Marinković A, Radojković B. Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy. in Materials and Corrosion-Werkstoffe Und Korrosion. 2022;.
doi:10.1002/maco.202112900 .

Marunkić, Dunja, Pejić, Jovanka, Jegdić, Bore, Marinković, Aleksandar, Radojković, Bojana, "Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy" in Materials and Corrosion-Werkstoffe Und Korrosion (2022),
https://doi.org/10.1002/maco.202112900 . .

TY  - JOUR
AU  - Kovacina, Jovanka
AU  - Jegdic, Bore
AU  - Radojkovic, Bojana
AU  - Marunkic, Dunja
AU  - Stevanovic, Sanja
AU  - Simović, Anđela
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4964
AB  - The influence of microstructure and surface roughness of the X5CrNi18-10 austenitic stainless steel-welded joint on resistance to uniform, pitting, and intergranular corrosion, as well as on the stability of the passive film, was evaluated. The microstructure was revealed by optical microscopy and scanning electron microscopy, whereas surface topography and roughness levels were determined by atomic force microscopy. Corrosion characteristics were obtained by the electrochemical potentiokinetic reactivation method with double loop, electrochemical impedance spectroscopy method, as well as by potentiodynamic measurements. The degree of sensitization of heat-affected zone (HAZ) was significantly lower than the threshold value required for the occurrence of intergranular corrosion. However, HAZ showed a significantly greater tendency to pitting and uniform corrosion compared to weld metal and base metal. No effect of roughness levels (RMS from 3.6 to 54 nm) on the pitting potential value of the welded joint was observed (unlike in HAZ). The polished surface shows significantly higher corrosion resistance than the grinded surface. Generally, polishing improved corrosion resistance, especially in HAZ, which is very important because HAZ is a critical place for the occurrence of pitting and other types of corrosion.
T2  - Materials and Corrosion-Werkstoffe Und Korrosion
T1  - Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint
EP  - 1231
IS  - 7
SP  - 1215
VL  - 72
DO  - 10.1002/maco.202012241
ER  - 

@article{
author = "Kovacina, Jovanka and Jegdic, Bore and Radojkovic, Bojana and Marunkic, Dunja and Stevanovic, Sanja and Simović, Anđela",
year = "2021",
abstract = "The influence of microstructure and surface roughness of the X5CrNi18-10 austenitic stainless steel-welded joint on resistance to uniform, pitting, and intergranular corrosion, as well as on the stability of the passive film, was evaluated. The microstructure was revealed by optical microscopy and scanning electron microscopy, whereas surface topography and roughness levels were determined by atomic force microscopy. Corrosion characteristics were obtained by the electrochemical potentiokinetic reactivation method with double loop, electrochemical impedance spectroscopy method, as well as by potentiodynamic measurements. The degree of sensitization of heat-affected zone (HAZ) was significantly lower than the threshold value required for the occurrence of intergranular corrosion. However, HAZ showed a significantly greater tendency to pitting and uniform corrosion compared to weld metal and base metal. No effect of roughness levels (RMS from 3.6 to 54 nm) on the pitting potential value of the welded joint was observed (unlike in HAZ). The polished surface shows significantly higher corrosion resistance than the grinded surface. Generally, polishing improved corrosion resistance, especially in HAZ, which is very important because HAZ is a critical place for the occurrence of pitting and other types of corrosion.",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint",
pages = "1231-1215",
number = "7",
volume = "72",
doi = "10.1002/maco.202012241"
}

Kovacina, J., Jegdic, B., Radojkovic, B., Marunkic, D., Stevanovic, S.,& Simović, A.. (2021). Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint. in Materials and Corrosion-Werkstoffe Und Korrosion, 72(7), 1215-1231.
https://doi.org/10.1002/maco.202012241

Kovacina J, Jegdic B, Radojkovic B, Marunkic D, Stevanovic S, Simović A. Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint. in Materials and Corrosion-Werkstoffe Und Korrosion. 2021;72(7):1215-1231.
doi:10.1002/maco.202012241 .

Kovacina, Jovanka, Jegdic, Bore, Radojkovic, Bojana, Marunkic, Dunja, Stevanovic, Sanja, Simović, Anđela, "Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint" in Materials and Corrosion-Werkstoffe Und Korrosion, 72, no. 7 (2021):1215-1231,
https://doi.org/10.1002/maco.202012241 . .

TY  - JOUR
AU  - Marunkic, Dunja
AU  - Pejic, Jovanka
AU  - Jegdic, Bore
AU  - Linic, Suzana
AU  - Perisic, Jasmina
AU  - Radojkovic, Bojana
AU  - Marinković, Aleksandar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4861
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.
T2  - Journal of the Electrochemical Society
T1  - Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution
IS  - 8
VL  - 168
DO  - 10.1149/1945-7111/ac1895
ER  - 

@article{
author = "Marunkic, Dunja and Pejic, Jovanka and Jegdic, Bore and Linic, Suzana and Perisic, Jasmina and Radojkovic, Bojana and Marinković, Aleksandar",
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.",
journal = "Journal of the Electrochemical Society",
title = "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution",
number = "8",
volume = "168",
doi = "10.1149/1945-7111/ac1895"
}

Marunkic, D., Pejic, J., Jegdic, B., Linic, S., Perisic, J., Radojkovic, B.,& Marinković, A.. (2021). Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of the Electrochemical Society, 168(8).
https://doi.org/10.1149/1945-7111/ac1895

Marunkic D, Pejic J, Jegdic B, Linic S, Perisic J, Radojkovic B, Marinković A. Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of the Electrochemical Society. 2021;168(8).
doi:10.1149/1945-7111/ac1895 .

Marunkic, Dunja, Pejic, Jovanka, Jegdic, Bore, Linic, Suzana, Perisic, Jasmina, Radojkovic, Bojana, Marinković, Aleksandar, "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution" in Journal of the Electrochemical Society, 168, no. 8 (2021),
https://doi.org/10.1149/1945-7111/ac1895 . .