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Nucleation and growth behavior of protective coating by plasma electrolytic oxidation considering grain size of 6061 aluminum alloy
PUBLISHED July 03, 2024 (DOI: https://doi.org/10.54985/peeref.2407p4346699)
NOT PEER REVIEWED
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Authors
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Maryam Chafiq1 , Abdelkarim Chaouiki1 , Young Gun Ko1
- School of Materials Science and Engineering, Yeungnam University
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Conference / event
- Conference on Research in Chemistry and Chemical Education, September 2022 (Bandung, Indonesia)
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Poster summary
- The work investigated nucleation and growth mechanism of protective coating during plasma electrolytic oxidation (PEO) by considering grain size of 6061 Al alloy substrate. Prior to PEO treatment, the substrate with grain size of 50 µm (coarse-grain, CG) was deformed via 4-pass differential-speed rolling (DSR) to achieve grain size of 1 µm (fine-grain, FG). Unlike CG, FG caused an early breakdown and more uniform characteristics of plasma sparks, resulting in the thick and compact layer. The nucleation and growth mechanism of the coating layer were scrutinized on the basis of transport behavior of massive electrons across the grain boundaries at the initial stage of PEO. The mechanical and corrosion properties of both samples were evaluated in a quantitative manner.
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Keywords
- Plasma electrolysis, Surface modification, Differential-speed rolling, Nucleation, Growth
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Research areas
- Material Sciences
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References
- No data provided
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Funding
- No data provided
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Supplemental files
- No data provided
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Additional information
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- Competing interests
- No competing interests were disclosed.
- Data availability statement
- The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.
- Creative Commons license
- Copyright © 2024 Chafiq et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Chafiq, M., Chaouiki, A., Ko, Y. Nucleation and growth behavior of protective coating by plasma electrolytic oxidation considering grain size of 6061 aluminum alloy [not peer reviewed]. Peeref 2024 (poster).
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