Aluminium AA7075 alloy with its low density and good mechanical properties, widely responds to the
requirements of aerospace, navy, and defense industries. However, corrosion is the most common problem that affects
the reliability and service life of components and constructions based on this alloy. One of the most practical methods
for protecting metals from corrosion is the use of inhibitors. Chromates are known as excellent inhibitors but chromate
compounds are highly toxic, carcinogenic, and thus hazardous to humans and the environment. The aim of this study
was to synthesize an organic eco-friendly compound (cerium-cysteine) and to investigate its inhibitory property on
aluminum alloy AA7075-T6. Rare-earth metals are effective and environmentally friendly substances for aluminium
protection as well as cysteine that can be found in many proteins and enzymes such as the keratin in hair. The
synthesized inhibitor was confirmed and analyzed by FTIR. The survey of samples corro...sion resistance was conducted
by three electrochemical methods: linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS),
and polarization measurements (Epit) in a 0.1M NaCl solution at room temperature. Different concentrations of ceriumcysteine were used to find the best efficiency. The best results were then tested for time dependence (up to 72 h). The
inhibitory effectiveness of the cerium complex is shown to depend on a variety of factors such as concentration and time
dependence.
TY - CONF
AU - Kovačina, Jovanka
AU - Marunkić, Dunja D.
AU - Simović, Anđela
AU - Radojković, Bojana
AU - Jegdić, Bore
AU - Marinković, Aleksandar D.
PY - 2020
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3942
AB - Aluminium AA7075 alloy with its low density and good mechanical properties, widely responds to the
requirements of aerospace, navy, and defense industries. However, corrosion is the most common problem that affects
the reliability and service life of components and constructions based on this alloy. One of the most practical methods
for protecting metals from corrosion is the use of inhibitors. Chromates are known as excellent inhibitors but chromate
compounds are highly toxic, carcinogenic, and thus hazardous to humans and the environment. The aim of this study
was to synthesize an organic eco-friendly compound (cerium-cysteine) and to investigate its inhibitory property on
aluminum alloy AA7075-T6. Rare-earth metals are effective and environmentally friendly substances for aluminium
protection as well as cysteine that can be found in many proteins and enzymes such as the keratin in hair. The
synthesized inhibitor was confirmed and analyzed by FTIR. The survey of samples corrosion resistance was conducted
by three electrochemical methods: linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS),
and polarization measurements (Epit) in a 0.1M NaCl solution at room temperature. Different concentrations of ceriumcysteine were used to find the best efficiency. The best results were then tested for time dependence (up to 72 h). The
inhibitory effectiveness of the cerium complex is shown to depend on a variety of factors such as concentration and time
dependence.
PB - Belgrade : Military Technical Institute
C3 - 9th International Scientific Conference od Defensive Technologies OTEH 2020
T1 - Cerium-cysteine complex inhibitor for aluminium alloy AA7075-T6
ER -
@conference{
author = "Kovačina, Jovanka and Marunkić, Dunja D. and Simović, Anđela and Radojković, Bojana and Jegdić, Bore and Marinković, Aleksandar D.",
year = "2020",
url = "https://cer.ihtm.bg.ac.rs/handle/123456789/3942",
abstract = "Aluminium AA7075 alloy with its low density and good mechanical properties, widely responds to the
requirements of aerospace, navy, and defense industries. However, corrosion is the most common problem that affects
the reliability and service life of components and constructions based on this alloy. One of the most practical methods
for protecting metals from corrosion is the use of inhibitors. Chromates are known as excellent inhibitors but chromate
compounds are highly toxic, carcinogenic, and thus hazardous to humans and the environment. The aim of this study
was to synthesize an organic eco-friendly compound (cerium-cysteine) and to investigate its inhibitory property on
aluminum alloy AA7075-T6. Rare-earth metals are effective and environmentally friendly substances for aluminium
protection as well as cysteine that can be found in many proteins and enzymes such as the keratin in hair. The
synthesized inhibitor was confirmed and analyzed by FTIR. The survey of samples corrosion resistance was conducted
by three electrochemical methods: linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS),
and polarization measurements (Epit) in a 0.1M NaCl solution at room temperature. Different concentrations of ceriumcysteine were used to find the best efficiency. The best results were then tested for time dependence (up to 72 h). The
inhibitory effectiveness of the cerium complex is shown to depend on a variety of factors such as concentration and time
dependence.",
publisher = "Belgrade : Military Technical Institute",
journal = "9th International Scientific Conference od Defensive Technologies OTEH 2020",
title = "Cerium-cysteine complex inhibitor for aluminium alloy AA7075-T6"
}
Kovačina J, Marunkić DD, Simović A, Radojković B, Jegdić B, Marinković AD. Cerium-cysteine complex inhibitor for aluminium alloy AA7075-T6. 9th International Scientific Conference od Defensive Technologies OTEH 2020. 2020;
Kovačina, J., Marunkić, D. D., Simović, A., Radojković, B., Jegdić, B.,& Marinković, A. D. (2020). Cerium-cysteine complex inhibitor for aluminium alloy AA7075-T6.
9th International Scientific Conference od Defensive Technologies OTEH 2020Belgrade : Military Technical Institute..
Kovačina Jovanka, Marunkić Dunja D., Simović Anđela, Radojković Bojana, Jegdić Bore, Marinković Aleksandar D., "Cerium-cysteine complex inhibitor for aluminium alloy AA7075-T6" (2020)
