Academic Journal
CORROSION BEHAVIOR OF A CONVERSION COATING BASED ON ZIRCONIUM AND COLORANTS ON GALVANIZED STEEL BY ELECTRODEPOSITION
| العنوان: | CORROSION BEHAVIOR OF A CONVERSION COATING BASED ON ZIRCONIUM AND COLORANTS ON GALVANIZED STEEL BY ELECTRODEPOSITION |
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| المؤلفون: | Josiane Soares Costa, Raquel Dei Agnoli, Jane Zoppas Ferreira |
| المصدر: | Tecnologia em Metalurgia, Materiais e Mineração, Vol 12, Iss 2, Pp 167-175 (2015) |
| بيانات النشر: | Associação Brasileira de Metalurgia, Materiais e Mineração, 2015. |
| سنة النشر: | 2015 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Mining engineering. Metallurgy LCC:Technological innovations. Automation |
| مصطلحات موضوعية: | Nano Zr, Immersion process, Electrodeposited zinc, Hexafluorozirconic alkaline solution., Materials of engineering and construction. Mechanics of materials, TA401-492, Mining engineering. Metallurgy, TN1-997, Technological innovations. Automation, HD45-45.2 |
| الوصف: | Corrosion performance of Zr-based coating on substrates obtained by zinc electrodeposition in an alkaline bath is compared to chromate coatings (Cr III and Cr VI). The “nano Zr” is a conversion coating formed by immersion in a hexafluorozirconic acid solution. Since the “nano Zr” coating is transparent, the addiction of a colorant provides color to the surface. In this case, the colorant, when applied after the conversion coating, conferred the yellow color to the surface. The coating produced improves the corrosion protection of the substrate. For this study the samples were analyzed by electrochemical impedance spectroscopy (EIS) and accelerated corrosion test in a humidity chamber. The results showed similar behaviors between the “nano Zr”, colorant and the chromate (Cr III) coating. Therefore this kind of conversion coating is a promising substitute for chromate coatings. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Spanish; Castilian Portuguese |
| تدمد: | 2176-1523 2176-1515 |
| Relation: | http://www.tecnologiammm.com.br/files/v12n2/v12n2a12.pdf; https://doaj.org/toc/2176-1515; https://doaj.org/toc/2176-1523 |
| DOI: | 10.4322/2176-1523.0852 |
| URL الوصول: | https://doaj.org/article/f4058b724a2243e4a66537726f5b587e |
| رقم الانضمام: | edsdoj.f4058b724a2243e4a66537726f5b587e |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 21761523 21761515 |
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| DOI: | 10.4322/2176-1523.0852 |