Corrosion Behavior of Shiny Side and Dull Side of Aluminum Foil in 0.3% Wt NaCl Non Agitated Solution: Appearance of Rhombus form Corrosion Morphology
| Autor: | Mohammed-El-Amin Faid, Jean-Paul Chopart, Nacer Zazi |
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| Rok vydání: | 2019 |
| Předmět: |
Aluminum foil
Materials science 020209 energy Organic Chemistry Metals and Alloys Intermetallic chemistry.chemical_element Rhombus 02 engineering and technology Corrosion morphology 021001 nanoscience & nanotechnology Surfaces Coatings and Films Corrosion chemistry Aluminium 0202 electrical engineering electronic engineering information engineering Materials Chemistry Composite material 0210 nano-technology Corrosion behavior FOIL method |
| Zdroj: | Protection of Metals and Physical Chemistry of Surfaces. 55:400-406 |
| ISSN: | 2070-206X 2070-2051 |
| DOI: | 10.1134/s2070205119020060 |
| Popis: | We have investigated the corrosion behavior of shiny and dull faces of aluminum household foil in 0.3 wt % NaCl nonagitated solution. The obtained results show several differences in the morphology and kinetic corrosion of the shiny and dull faces. After seven months of immersion in the 0.3 wt % NaCl non-agitated solution localized diamond-shaped corrosions appear in some zones of the aluminum foil. In the case of the dull face, their forms are very close to perfect rhombus; however the rhombus forms are swollen on the shiny face. In addition, we observe in other zones pitting corrosions. Rhombus form in the dull face is, probably, due to NaCl crystal precipitation on the marks left by the intermetallic particles, during the last passage of cold rolling causing a sheet-to-sheet contact. The adhesion component of friction increases the density of the marks on the dull surface and induces localized corrosion in the perfect rhombus form. However, the absence of a friction adhesion component provokes a deflection from the perfect rhombus form to a swollen rhombus form. |
| Databáze: | OpenAIRE |
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