Investigation of the effect of physical conditions of a coating bath on the corrosion behavior of zinc coating using response surface methodology
| Autor: | Deniz Bingöl, Ümran Erten, Sibel Zor |
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| Rok vydání: | 2015 |
| Předmět: |
Tafel equation
Materials science Quadratic model Organic Chemistry Metallurgy Metals and Alloys chemistry.chemical_element Zinc engineering.material Surfaces Coatings and Films Corrosion Coating chemistry Materials Chemistry engineering Response surface methodology Composite material Polarization (electrochemistry) Corrosion behavior |
| Zdroj: | Protection of Metals and Physical Chemistry of Surfaces. 51:304-309 |
| ISSN: | 2070-206X 2070-2051 |
| DOI: | 10.1134/s2070205115020173 |
| Popis: | In this study, to minimize the corrosion rate zinc coatings conditions were optimized using a Box-Behnken design combined with response surface methodology. The different electro zinc coatings were obtained by changing three independent variables; the stirring rate (200–600 rpm), temperature of the bath (30–70°C) and the coating time (30–120 min) in 3.5% NaCl solution. The corrosion rate of the obtained zinc coatings was determined using the Tafel polarization method. A quadratic regression equation was derived to predict the responses. The correspondence between the experimental and predicted values (R (adj) 2 = 98.55%) demonstrates that the quadratic model was highly significant with 95% confidence levels (α = 0.05). The optimum zinc coating conditions based on the minimization of corrosion rate were; stirring rate 600 rpm, temperature of bath 55°C and a coating time of 50 min for i corr 16.35 μA/cm2. |
| Databáze: | OpenAIRE |
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