Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy
Local anodization with a free electrolyte jet is a suitable solution for locally confined surface functionalization without additionally required preparation of the parts. However, the geometrical formation of the anodic oxide layer in jet-based anodization is not yet sufficiently understood. In thi...
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MDPI AG
2023-01-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/2/293 |
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| author | Susanne Quitzke Igor Danilov André Martin Roy Morgenstern Thomas Lampke Andreas Schubert |
| author_facet | Susanne Quitzke Igor Danilov André Martin Roy Morgenstern Thomas Lampke Andreas Schubert |
| author_sort | Susanne Quitzke |
| collection | DOAJ |
| description | Local anodization with a free electrolyte jet is a suitable solution for locally confined surface functionalization without additionally required preparation of the parts. However, the geometrical formation of the anodic oxide layer in jet-based anodization is not yet sufficiently understood. In this study, numerical calculations based on physical descriptions are used to describe the lateral and vertical oxide formation on aluminum alloy EN AW-7075. The required electrical resistance and capacitance were determined by immersion-based anodization and implemented into the numerical simulation model to evaluate the electrical conductivity of the porous layer. The simulation results showed an electrical conductivity of 2.6 × 10<sup>−6</sup> S/m for the porous layer. Subsequently, a model for jet-based anodization was developed and the previous results were implemented to calculate the oxide formation. The simulation results showed decreasing oxide layer thickness at increasing radial distance from the center of the jet, which corresponds to experimental results. The simulation model was validated by varying the current efficiency from 5% to 90%, where similar developments of the anodic oxide layer thickness compared with experimental results were determined at 5%. |
| first_indexed | 2024-03-11T08:25:15Z |
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| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T08:25:15Z |
| publishDate | 2023-01-01 |
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| series | Micromachines |
| spelling | doaj.art-7de1dcfe9ec34a8b966b98d1f5ad1a7b2023-11-16T22:10:12ZengMDPI AGMicromachines2072-666X2023-01-0114229310.3390/mi14020293Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum AlloySusanne Quitzke0Igor Danilov1André Martin2Roy Morgenstern3Thomas Lampke4Andreas Schubert5Professorship Micromanufacturing Technology, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, GermanyProfessorship Micromanufacturing Technology, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, GermanyProfessorship Micromanufacturing Technology, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, GermanyMaterials and Surface Engineering, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, GermanyMaterials and Surface Engineering, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, GermanyProfessorship Micromanufacturing Technology, Faculty of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, GermanyLocal anodization with a free electrolyte jet is a suitable solution for locally confined surface functionalization without additionally required preparation of the parts. However, the geometrical formation of the anodic oxide layer in jet-based anodization is not yet sufficiently understood. In this study, numerical calculations based on physical descriptions are used to describe the lateral and vertical oxide formation on aluminum alloy EN AW-7075. The required electrical resistance and capacitance were determined by immersion-based anodization and implemented into the numerical simulation model to evaluate the electrical conductivity of the porous layer. The simulation results showed an electrical conductivity of 2.6 × 10<sup>−6</sup> S/m for the porous layer. Subsequently, a model for jet-based anodization was developed and the previous results were implemented to calculate the oxide formation. The simulation results showed decreasing oxide layer thickness at increasing radial distance from the center of the jet, which corresponds to experimental results. The simulation model was validated by varying the current efficiency from 5% to 90%, where similar developments of the anodic oxide layer thickness compared with experimental results were determined at 5%.https://www.mdpi.com/2072-666X/14/2/293localized mask-less anodizationlocal functionalizationoxide layer formationfree electrolyte jetelectrodynamic simulation |
| spellingShingle | Susanne Quitzke Igor Danilov André Martin Roy Morgenstern Thomas Lampke Andreas Schubert Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy Micromachines localized mask-less anodization local functionalization oxide layer formation free electrolyte jet electrodynamic simulation |
| title | Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy |
| title_full | Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy |
| title_fullStr | Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy |
| title_full_unstemmed | Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy |
| title_short | Simulation-Assisted Process Design and Experimental Verification of Laterally Confined Oxide Areas Generated with Continuous Electrolytic Free Jet on EN AW-7075 Aluminum Alloy |
| title_sort | simulation assisted process design and experimental verification of laterally confined oxide areas generated with continuous electrolytic free jet on en aw 7075 aluminum alloy |
| topic | localized mask-less anodization local functionalization oxide layer formation free electrolyte jet electrodynamic simulation |
| url | https://www.mdpi.com/2072-666X/14/2/293 |
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