Surface finish effect on the anodizing behaviour of Al-Si components obtained by sub-liquidus casting process
| Autor: | J.A. Picas, M. Campillo, S. Menargues, E. Martín, Antonio Forn, M.T. Baile |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Universitat Politècnica de Catalunya. CDAL - Centre de Disseny d'Aliatges Lleugers i Tractaments de Superfície |
| Rok vydání: | 2010 |
| Předmět: |
Semisolid
Materials science Alumini -- Aliatges chemistry.chemical_element Enginyeria química::Indústries químiques::Aliatges [Àrees temàtiques de la UPC] Mechanical properties Surface finish Anodizing Shot peening Corrosion Aluminium Aluminium alloy General Materials Science Metallurgy Sub Liquidus Casting® process Sub-liquidus casting Microstructure Enginyeria dels materials::Metal·lúrgia [Àrees temàtiques de la UPC] Aluminum alloys -- Corrosion Liquid aluminum chemistry visual_art visual_art.visual_art_medium Tribometer |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1960-6214 1960-6206 |
| DOI: | 10.1007/s12289-010-0883-0 |
| Popis: | The aim of this study was to investigate the hard decorative anodizing components of A357 aluminium alloy, obtained in semisolid state by Sub Liquidus Casting® process, to improve its tribological properties and corrosion resistance. Components were heat treated in order to modify the shape and distribution of the eutectic silicon phase. The influence of shot peening pre-treatment on anodizing process was evaluated. Surface modifications were investigated as they might have beneficial effects on the wear and corrosion behaviour. Furthermore, the influence of surface condition on the anodization colouring behaviour of aluminium was studied. The microstructure and the surface finish influence on the anodic oxide film growth were studied by optical and scanning electron microscopy. Experiments using a tribometer (ball on disc configuration) were performed in order to evaluate the tribological properties of the material. Salt spray corrosion tests were used to study the corrosion properties before and after the anodizing process. |
| Databáze: | OpenAIRE |
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