Effect of surface modification by Fe-P alloys on corrosion behaviour of epoxy coatings electrodeposited on steel
Апстракт
Corrosion behaviour of electrodeposited epoxy coatings on electrochemically modified steel surface by Fe-P alloys of different chemical and phase structures has been investigated by exposure to 3% NaCl. The electrochemical impedance spectroscopy (EIS), polarisation measurements and corrosion potential time measurements have been used. The steel surface was modified by electrochemical deposition of thin films of Fe-P alloys from sulfate acid solution at various cut-rent densities, with the aim of improving the corrosion resistance of organic film. Epoxy topcoat was formed by cathodic electrodeposition of an epoxy resin on previously modified steel surface using constant voltage method (resin concentration 10 wt%, temperature 299 K, applied voltage 250 V). From the time dependence of pore resistance, coating capacitance and relative Permittivity of coating, obtained from EIS and corrosion potential time measurements it can be observed that the Fe-P alloys improve the corrosion stability ...of the protective system based on epoxy coating. The electrodeposition current densities, which cause different chemical and phase structures of Fe-P sublayers, exhibit the great influence on the formation and characteristics of epoxy coating.
Кључне речи:
corrosion / electrochemical impedance spectroscopy / electreodeposition / epoxy coatings / Fe-P alloyИзвор:
Bulletin of Electrochemistry, 2001, 17, 6, 241-247Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Mišković-Stanković, Vesna AU - Zotović, Jelena B. AU - Maksimović, Miodrag D. PY - 2001 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/342 AB - Corrosion behaviour of electrodeposited epoxy coatings on electrochemically modified steel surface by Fe-P alloys of different chemical and phase structures has been investigated by exposure to 3% NaCl. The electrochemical impedance spectroscopy (EIS), polarisation measurements and corrosion potential time measurements have been used. The steel surface was modified by electrochemical deposition of thin films of Fe-P alloys from sulfate acid solution at various cut-rent densities, with the aim of improving the corrosion resistance of organic film. Epoxy topcoat was formed by cathodic electrodeposition of an epoxy resin on previously modified steel surface using constant voltage method (resin concentration 10 wt%, temperature 299 K, applied voltage 250 V). From the time dependence of pore resistance, coating capacitance and relative Permittivity of coating, obtained from EIS and corrosion potential time measurements it can be observed that the Fe-P alloys improve the corrosion stability of the protective system based on epoxy coating. The electrodeposition current densities, which cause different chemical and phase structures of Fe-P sublayers, exhibit the great influence on the formation and characteristics of epoxy coating. T2 - Bulletin of Electrochemistry T1 - Effect of surface modification by Fe-P alloys on corrosion behaviour of epoxy coatings electrodeposited on steel EP - 247 IS - 6 SP - 241 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_technorep_342 ER -
@article{ author = "Mišković-Stanković, Vesna and Zotović, Jelena B. and Maksimović, Miodrag D.", year = "2001", abstract = "Corrosion behaviour of electrodeposited epoxy coatings on electrochemically modified steel surface by Fe-P alloys of different chemical and phase structures has been investigated by exposure to 3% NaCl. The electrochemical impedance spectroscopy (EIS), polarisation measurements and corrosion potential time measurements have been used. The steel surface was modified by electrochemical deposition of thin films of Fe-P alloys from sulfate acid solution at various cut-rent densities, with the aim of improving the corrosion resistance of organic film. Epoxy topcoat was formed by cathodic electrodeposition of an epoxy resin on previously modified steel surface using constant voltage method (resin concentration 10 wt%, temperature 299 K, applied voltage 250 V). From the time dependence of pore resistance, coating capacitance and relative Permittivity of coating, obtained from EIS and corrosion potential time measurements it can be observed that the Fe-P alloys improve the corrosion stability of the protective system based on epoxy coating. The electrodeposition current densities, which cause different chemical and phase structures of Fe-P sublayers, exhibit the great influence on the formation and characteristics of epoxy coating.", journal = "Bulletin of Electrochemistry", title = "Effect of surface modification by Fe-P alloys on corrosion behaviour of epoxy coatings electrodeposited on steel", pages = "247-241", number = "6", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_technorep_342" }
Mišković-Stanković, V., Zotović, J. B.,& Maksimović, M. D.. (2001). Effect of surface modification by Fe-P alloys on corrosion behaviour of epoxy coatings electrodeposited on steel. in Bulletin of Electrochemistry, 17(6), 241-247. https://hdl.handle.net/21.15107/rcub_technorep_342
Mišković-Stanković V, Zotović JB, Maksimović MD. Effect of surface modification by Fe-P alloys on corrosion behaviour of epoxy coatings electrodeposited on steel. in Bulletin of Electrochemistry. 2001;17(6):241-247. https://hdl.handle.net/21.15107/rcub_technorep_342 .
Mišković-Stanković, Vesna, Zotović, Jelena B., Maksimović, Miodrag D., "Effect of surface modification by Fe-P alloys on corrosion behaviour of epoxy coatings electrodeposited on steel" in Bulletin of Electrochemistry, 17, no. 6 (2001):241-247, https://hdl.handle.net/21.15107/rcub_technorep_342 .