Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation
We have used multi-phase field simulation to mimic the actual process of lotus aluminum production, i.e., unidirectional solidification of aluminum in a hydrogen atmosphere. We used PD control and PID control, conventional methods of feedback control, to control the pore width precisely in the simul...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | ECS Advances |
| Subjects: | |
| Online Access: | https://doi.org/10.1149/2754-2734/acee15 |
| _version_ | 1828717819970191360 |
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| author | K. Takahashi K. Yamaguchi Y. Sasajima T. Ikeda |
| author_facet | K. Takahashi K. Yamaguchi Y. Sasajima T. Ikeda |
| author_sort | K. Takahashi |
| collection | DOAJ |
| description | We have used multi-phase field simulation to mimic the actual process of lotus aluminum production, i.e., unidirectional solidification of aluminum in a hydrogen atmosphere. We used PD control and PID control, conventional methods of feedback control, to control the pore width precisely in the simulation. The pore width was shown to decrease slowly in PID control due to the slow feedback of I-control, and PD control was shown to produce stable long pores, although the pore width became larger than the target pore width. The initial hydrogen concentration in the liquid, which was controlled by atmospheric hydrogen pressure, had a significant effect on the pore growth; the higher the hydrogen concentration, the thicker the pore width and vice versa. It was also clarified that the pore width and the elongation length of the pore took various values depending on the combination of PD parameters even if the same target value was set. |
| first_indexed | 2024-03-12T14:33:57Z |
| format | Article |
| id | doaj.art-14fceb79c8ee475d9e38631ef18a28f5 |
| institution | Directory Open Access Journal |
| issn | 2754-2734 |
| language | English |
| last_indexed | 2024-03-12T14:33:57Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
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| series | ECS Advances |
| spelling | doaj.art-14fceb79c8ee475d9e38631ef18a28f52023-08-17T11:20:53ZengIOP PublishingECS Advances2754-27342023-01-012303200110.1149/2754-2734/acee15Optimization of Pore Formation Process of Lotus Aluminum by Phase Field SimulationK. Takahashi0K. Yamaguchi1https://orcid.org/0000-0001-5533-652XY. Sasajima2T. Ikeda3Department of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki University , 4-12-1 Nakanarusawa, Hitachi 316-8511, JapanDepartment of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki University , 4-12-1 Nakanarusawa, Hitachi 316-8511, JapanDepartment of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki University , 4-12-1 Nakanarusawa, Hitachi 316-8511, JapanDepartment of Materials Science and Engineering, Graduate School of Science and Engineering, Ibaraki University , 4-12-1 Nakanarusawa, Hitachi 316-8511, JapanWe have used multi-phase field simulation to mimic the actual process of lotus aluminum production, i.e., unidirectional solidification of aluminum in a hydrogen atmosphere. We used PD control and PID control, conventional methods of feedback control, to control the pore width precisely in the simulation. The pore width was shown to decrease slowly in PID control due to the slow feedback of I-control, and PD control was shown to produce stable long pores, although the pore width became larger than the target pore width. The initial hydrogen concentration in the liquid, which was controlled by atmospheric hydrogen pressure, had a significant effect on the pore growth; the higher the hydrogen concentration, the thicker the pore width and vice versa. It was also clarified that the pore width and the elongation length of the pore took various values depending on the combination of PD parameters even if the same target value was set.https://doi.org/10.1149/2754-2734/acee15lotus metalpore growth processdirectional solidificationmulti phase field methodPID control |
| spellingShingle | K. Takahashi K. Yamaguchi Y. Sasajima T. Ikeda Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation ECS Advances lotus metal pore growth process directional solidification multi phase field method PID control |
| title | Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation |
| title_full | Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation |
| title_fullStr | Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation |
| title_full_unstemmed | Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation |
| title_short | Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation |
| title_sort | optimization of pore formation process of lotus aluminum by phase field simulation |
| topic | lotus metal pore growth process directional solidification multi phase field method PID control |
| url | https://doi.org/10.1149/2754-2734/acee15 |
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