The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060
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Аутори
Živković, LjiljanaJegdić, Bore V.
Popić, Jovan P.
Bajat, Jelena B.
Mišković-Stanković, Vesna B.
Чланак у часопису
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Приказ свих података о документуАпстракт
Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-t...reated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment. (C) 2013 Elsevier B.V. All rights reserved.
Кључне речи:
Corrosion / Electrochemical impedance spectroscopy / Polyester coating / Adhesion / Aluminium alloyИзвор:
Progress in Organic Coatings, 2013, 76, 10, 1387-1395Финансирање / пројекти:
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Синтеза, развој технологија добијања и примена наноструктурних мултифункционалних материјала дефинисаних својстава (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
DOI: 10.1016/j.porgcoat.2013.04.017
ISSN: 0038-1098
WoS: 000323406400014
Scopus: 2-s2.0-84880307503
Колекције
Институција/група
VinčaTY - JOUR AU - Živković, Ljiljana AU - Jegdić, Bore V. AU - Popić, Jovan P. AU - Bajat, Jelena B. AU - Mišković-Stanković, Vesna B. PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5641 AB - Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-treated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment. (C) 2013 Elsevier B.V. All rights reserved. T2 - Progress in Organic Coatings T1 - The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060 VL - 76 IS - 10 SP - 1387 EP - 1395 DO - 10.1016/j.porgcoat.2013.04.017 ER -
@article{ author = "Živković, Ljiljana and Jegdić, Bore V. and Popić, Jovan P. and Bajat, Jelena B. and Mišković-Stanković, Vesna B.", year = "2013", abstract = "Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-treated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment. (C) 2013 Elsevier B.V. All rights reserved.", journal = "Progress in Organic Coatings", title = "The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060", volume = "76", number = "10", pages = "1387-1395", doi = "10.1016/j.porgcoat.2013.04.017" }
Živković, L., Jegdić, B. V., Popić, J. P., Bajat, J. B.,& Mišković-Stanković, V. B.. (2013). The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060. in Progress in Organic Coatings, 76(10), 1387-1395. https://doi.org/10.1016/j.porgcoat.2013.04.017
Živković L, Jegdić BV, Popić JP, Bajat JB, Mišković-Stanković VB. The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060. in Progress in Organic Coatings. 2013;76(10):1387-1395. doi:10.1016/j.porgcoat.2013.04.017 .
Živković, Ljiljana, Jegdić, Bore V., Popić, Jovan P., Bajat, Jelena B., Mišković-Stanković, Vesna B., "The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060" in Progress in Organic Coatings, 76, no. 10 (2013):1387-1395, https://doi.org/10.1016/j.porgcoat.2013.04.017 . .