The disbonding of powder polyester coating on steel pretreated by zinc-phosphate and iron-phosphate coatings
Апстракт
The influence of different types of conversion phosphate coatings on the corrosion stability of top powder polyester coating on steel was investigated. The morphology of phosphate coatings was investigated using scanning electron microscopy (SEM), composition by energy dispersive X-ray spectroscopy (EDS) and surface coverage by voltametric anodic dissolution (VAD) technique. The corrosion stability of polyester coating on steel pretreated by phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS). It was shown that small crystal nuclei of iron-phosphate coating have sporadically emerged on the steel substrate while zinc-phosphate coating had more compact structure with better surface coverage. After prolonged exposure, there was a significant decrease in Rp values for polyester/zinc-phosphate protective system, as a result of the disbondment of polyester coating, while Rp values for polyester coating on steel pretreated with iron-phosphate coating remained a...lmost unchanged, pointing to a greater stability of this protective system.
Кључне речи:
low carbon steel / phosphate coating / organic coating / corrosion / EISИзвор:
Ochrona przed Korozją, 2013, 56, 10, 423-429Издавач:
- Wydawnictwo SIGMA - N O T Sp. z o.o
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Jegdić, Bore V. AU - Popić, Jovan P. AU - Bajat, Jelena B. AU - Mišković-Stanković, Vesna B. PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6155 AB - The influence of different types of conversion phosphate coatings on the corrosion stability of top powder polyester coating on steel was investigated. The morphology of phosphate coatings was investigated using scanning electron microscopy (SEM), composition by energy dispersive X-ray spectroscopy (EDS) and surface coverage by voltametric anodic dissolution (VAD) technique. The corrosion stability of polyester coating on steel pretreated by phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS). It was shown that small crystal nuclei of iron-phosphate coating have sporadically emerged on the steel substrate while zinc-phosphate coating had more compact structure with better surface coverage. After prolonged exposure, there was a significant decrease in Rp values for polyester/zinc-phosphate protective system, as a result of the disbondment of polyester coating, while Rp values for polyester coating on steel pretreated with iron-phosphate coating remained almost unchanged, pointing to a greater stability of this protective system. PB - Wydawnictwo SIGMA - N O T Sp. z o.o T2 - Ochrona przed Korozją T1 - The disbonding of powder polyester coating on steel pretreated by zinc-phosphate and iron-phosphate coatings EP - 429 IS - 10 SP - 423 VL - 56 UR - https://hdl.handle.net/21.15107/rcub_technorep_6155 ER -
@article{ author = "Jegdić, Bore V. and Popić, Jovan P. and Bajat, Jelena B. and Mišković-Stanković, Vesna B.", year = "2013", abstract = "The influence of different types of conversion phosphate coatings on the corrosion stability of top powder polyester coating on steel was investigated. The morphology of phosphate coatings was investigated using scanning electron microscopy (SEM), composition by energy dispersive X-ray spectroscopy (EDS) and surface coverage by voltametric anodic dissolution (VAD) technique. The corrosion stability of polyester coating on steel pretreated by phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS). It was shown that small crystal nuclei of iron-phosphate coating have sporadically emerged on the steel substrate while zinc-phosphate coating had more compact structure with better surface coverage. After prolonged exposure, there was a significant decrease in Rp values for polyester/zinc-phosphate protective system, as a result of the disbondment of polyester coating, while Rp values for polyester coating on steel pretreated with iron-phosphate coating remained almost unchanged, pointing to a greater stability of this protective system.", publisher = "Wydawnictwo SIGMA - N O T Sp. z o.o", journal = "Ochrona przed Korozją", title = "The disbonding of powder polyester coating on steel pretreated by zinc-phosphate and iron-phosphate coatings", pages = "429-423", number = "10", volume = "56", url = "https://hdl.handle.net/21.15107/rcub_technorep_6155" }
Jegdić, B. V., Popić, J. P., Bajat, J. B.,& Mišković-Stanković, V. B.. (2013). The disbonding of powder polyester coating on steel pretreated by zinc-phosphate and iron-phosphate coatings. in Ochrona przed Korozją Wydawnictwo SIGMA - N O T Sp. z o.o., 56(10), 423-429. https://hdl.handle.net/21.15107/rcub_technorep_6155
Jegdić BV, Popić JP, Bajat JB, Mišković-Stanković VB. The disbonding of powder polyester coating on steel pretreated by zinc-phosphate and iron-phosphate coatings. in Ochrona przed Korozją. 2013;56(10):423-429. https://hdl.handle.net/21.15107/rcub_technorep_6155 .
Jegdić, Bore V., Popić, Jovan P., Bajat, Jelena B., Mišković-Stanković, Vesna B., "The disbonding of powder polyester coating on steel pretreated by zinc-phosphate and iron-phosphate coatings" in Ochrona przed Korozją, 56, no. 10 (2013):423-429, https://hdl.handle.net/21.15107/rcub_technorep_6155 .