Study on the interface of PVDF coatings and HF-treated AZ31 magnesium alloy: Determination of interfacial interactions and reactions with self-healing properties
| Autor: | D. Hoeche, Thiago F. da Conceição, Nico Scharnagl, Karl Ulrich Kainer, Wolfgang Dietzel |
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| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Materials science Scanning electron microscope General Chemical Engineering Metallurgy General Chemistry Polymer Dip-coating Corrosion Acetic acid chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Chemical engineering General Materials Science Magnesium alloy Fluoride |
| Zdroj: | Corrosion Science. 53:712-719 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2010.11.001 |
| Popis: | In this paper the interface of poly(vinylidene fluoride) coatings prepared by the dip coating method and HF-treated AZ31 magnesium alloy was evaluated. The best performance of this system in corrosion tests compared to ground, as-received and acetic acid cleaned substrates is related to an acid–base interaction at the interface and to interfacial reactions which resulted in a self-healing process. The protectiveness of the samples was investigated using impedance and immersion tests while the coating morphology and interface stability were investigated by scanning electron microscopy, X-ray photoelectron spectroscopy and adhesion tests. |
| Databáze: | OpenAIRE |
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