Electrodeposition and characterization of smart selfhealing composite Zn-Co-RE coatings
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2024
Аутори
Mitrović, MarijaMijatović, Aleksandra
Simović, Anđela
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Pavlović, Miroslav
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Fuchs Godec, Regina
Tomić, Milorad
Pavlović, Miomir
Bajat, Jelena
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Incorporation of Rare earth elements (RE), which are known as good corrosion inhibitors, could be promising for extending a useful life of metallic coatings. In this work electrodeposited Zn-Co-RE composite coatings (RE=La, Sm, Y) were studied with the aim of defining the optimal parameters for obtaining the coatings with improved corrosion stability. The coatings were deposited galvanostatically, at different current densities, from chloride electrolyte at 25 °C. The chemical content of composite coatings was determined by energy dispersive X-ray analysis (EDS), morphology by scanning electron microscopy (SEM) and corrosion stability by electrochemical impedance spectroscopy (EIS). It was shown that deposition is of anomalous type. Zn-Co-Sm coatings contain K that forms a water soluble complex with Sm that easily dissolves leaving a porous coating of a poor corrosion stability. Since small deposition current density favors greater Sm, as well as K, incorporation, coatings obtained at ...greater current density showed better corrosion stability with short self-healing effect. Contrary, Zn-Co-Y coatings deposited at smaller current densities, with greater Y amount, exhibited excellent selfhealing effect with considerable increase in impedance values.
Кључне речи:
smart coatings / selfhealing / corrosion / electrodepositionИзвор:
Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia, 2024, 156-156Издавач:
- Serbian Society of Corrosion and Materials Protection UISKOZAM
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
- Ministry of Scientific and Technological Development and Higher Education of the Republic of Srpska (Grant No. 19.032/431-1-34/23)
Институција/група
IHTMTY - CONF AU - Mitrović, Marija AU - Mijatović, Aleksandra AU - Simović, Anđela AU - Pavlović, Miroslav AU - Fuchs Godec, Regina AU - Tomić, Milorad AU - Pavlović, Miomir AU - Bajat, Jelena PY - 2024 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/7674 AB - Incorporation of Rare earth elements (RE), which are known as good corrosion inhibitors, could be promising for extending a useful life of metallic coatings. In this work electrodeposited Zn-Co-RE composite coatings (RE=La, Sm, Y) were studied with the aim of defining the optimal parameters for obtaining the coatings with improved corrosion stability. The coatings were deposited galvanostatically, at different current densities, from chloride electrolyte at 25 °C. The chemical content of composite coatings was determined by energy dispersive X-ray analysis (EDS), morphology by scanning electron microscopy (SEM) and corrosion stability by electrochemical impedance spectroscopy (EIS). It was shown that deposition is of anomalous type. Zn-Co-Sm coatings contain K that forms a water soluble complex with Sm that easily dissolves leaving a porous coating of a poor corrosion stability. Since small deposition current density favors greater Sm, as well as K, incorporation, coatings obtained at greater current density showed better corrosion stability with short self-healing effect. Contrary, Zn-Co-Y coatings deposited at smaller current densities, with greater Y amount, exhibited excellent selfhealing effect with considerable increase in impedance values. PB - Serbian Society of Corrosion and Materials Protection UISKOZAM C3 - Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia T1 - Electrodeposition and characterization of smart selfhealing composite Zn-Co-RE coatings SP - 156 EP - 156 UR - https://hdl.handle.net/21.15107/rcub_cer_7674 ER -
@conference{ author = "Mitrović, Marija and Mijatović, Aleksandra and Simović, Anđela and Pavlović, Miroslav and Fuchs Godec, Regina and Tomić, Milorad and Pavlović, Miomir and Bajat, Jelena", year = "2024", abstract = "Incorporation of Rare earth elements (RE), which are known as good corrosion inhibitors, could be promising for extending a useful life of metallic coatings. In this work electrodeposited Zn-Co-RE composite coatings (RE=La, Sm, Y) were studied with the aim of defining the optimal parameters for obtaining the coatings with improved corrosion stability. The coatings were deposited galvanostatically, at different current densities, from chloride electrolyte at 25 °C. The chemical content of composite coatings was determined by energy dispersive X-ray analysis (EDS), morphology by scanning electron microscopy (SEM) and corrosion stability by electrochemical impedance spectroscopy (EIS). It was shown that deposition is of anomalous type. Zn-Co-Sm coatings contain K that forms a water soluble complex with Sm that easily dissolves leaving a porous coating of a poor corrosion stability. Since small deposition current density favors greater Sm, as well as K, incorporation, coatings obtained at greater current density showed better corrosion stability with short self-healing effect. Contrary, Zn-Co-Y coatings deposited at smaller current densities, with greater Y amount, exhibited excellent selfhealing effect with considerable increase in impedance values.", publisher = "Serbian Society of Corrosion and Materials Protection UISKOZAM", journal = "Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia", title = "Electrodeposition and characterization of smart selfhealing composite Zn-Co-RE coatings", pages = "156-156", url = "https://hdl.handle.net/21.15107/rcub_cer_7674" }
Mitrović, M., Mijatović, A., Simović, A., Pavlović, M., Fuchs Godec, R., Tomić, M., Pavlović, M.,& Bajat, J.. (2024). Electrodeposition and characterization of smart selfhealing composite Zn-Co-RE coatings. in Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia Serbian Society of Corrosion and Materials Protection UISKOZAM., 156-156. https://hdl.handle.net/21.15107/rcub_cer_7674
Mitrović M, Mijatović A, Simović A, Pavlović M, Fuchs Godec R, Tomić M, Pavlović M, Bajat J. Electrodeposition and characterization of smart selfhealing composite Zn-Co-RE coatings. in Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia. 2024;:156-156. https://hdl.handle.net/21.15107/rcub_cer_7674 .
Mitrović, Marija, Mijatović, Aleksandra, Simović, Anđela, Pavlović, Miroslav, Fuchs Godec, Regina, Tomić, Milorad, Pavlović, Miomir, Bajat, Jelena, "Electrodeposition and characterization of smart selfhealing composite Zn-Co-RE coatings" in Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia (2024):156-156, https://hdl.handle.net/21.15107/rcub_cer_7674 .