Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid
In this study, microstructural evolution during solidification of a hypereutectic Al–Mn–Fe–Si alloy was investigated using semi-quantitative two-/three-dimensional phase-field modeling. The formation of facetted Al<sub>6</sub>Mn precipitates and the temperature evolution during solidific...
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MDPI AG
2020-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/10/1325 |
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| author | Jiwon Park Chang-Seok Oh Joo-Hee Kang Jae-Gil Jung Jung-Moo Lee |
| author_facet | Jiwon Park Chang-Seok Oh Joo-Hee Kang Jae-Gil Jung Jung-Moo Lee |
| author_sort | Jiwon Park |
| collection | DOAJ |
| description | In this study, microstructural evolution during solidification of a hypereutectic Al–Mn–Fe–Si alloy was investigated using semi-quantitative two-/three-dimensional phase-field modeling. The formation of facetted Al<sub>6</sub>Mn precipitates and the temperature evolution during solidification were simulated and experimentally validated. The temperature evolution obtained from the phase-field simulation, which was balanced between extracted heat and latent heat release, was compared to the thermal profile of the specimen measured during casting to validate the semi-quantitative phase-field simulation. The casting microstructure, grain morphology, and solute distribution of the specimen were analyzed using electron backscatter diffraction and energy-dispersive spectroscopy and compared with the simulated microstructure. The simulation results identified the different Fe to Mn ratios in Al<sub>6</sub>(Mn<i><sub>x</sub></i>,Fe<sub>1−<i>x</i></sub>) precipitates that formed during different solidification stages and were confirmed by energy-dispersive spectroscopy. The precipitates formed in the late solidification stage were more enriched with Fe than the primary precipitate due to solute segregation in the interdendritic channel. The semi-quantitative model facilitated a direct comparison between the simulation and experimental observations. |
| first_indexed | 2024-03-10T15:51:49Z |
| format | Article |
| id | doaj.art-82aeb00c06064399a6c33b2f849be8e8 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T15:51:49Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-82aeb00c06064399a6c33b2f849be8e82023-11-20T15:59:03ZengMDPI AGMetals2075-47012020-10-011010132510.3390/met10101325Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental AidJiwon Park0Chang-Seok Oh1Joo-Hee Kang2Jae-Gil Jung3Jung-Moo Lee4Korea Institute of Materials Science, 797 Changwondaero, Changwon 51508, KoreaKorea Institute of Materials Science, 797 Changwondaero, Changwon 51508, KoreaKorea Institute of Materials Science, 797 Changwondaero, Changwon 51508, KoreaKorea Institute of Materials Science, 797 Changwondaero, Changwon 51508, KoreaKorea Institute of Materials Science, 797 Changwondaero, Changwon 51508, KoreaIn this study, microstructural evolution during solidification of a hypereutectic Al–Mn–Fe–Si alloy was investigated using semi-quantitative two-/three-dimensional phase-field modeling. The formation of facetted Al<sub>6</sub>Mn precipitates and the temperature evolution during solidification were simulated and experimentally validated. The temperature evolution obtained from the phase-field simulation, which was balanced between extracted heat and latent heat release, was compared to the thermal profile of the specimen measured during casting to validate the semi-quantitative phase-field simulation. The casting microstructure, grain morphology, and solute distribution of the specimen were analyzed using electron backscatter diffraction and energy-dispersive spectroscopy and compared with the simulated microstructure. The simulation results identified the different Fe to Mn ratios in Al<sub>6</sub>(Mn<i><sub>x</sub></i>,Fe<sub>1−<i>x</i></sub>) precipitates that formed during different solidification stages and were confirmed by energy-dispersive spectroscopy. The precipitates formed in the late solidification stage were more enriched with Fe than the primary precipitate due to solute segregation in the interdendritic channel. The semi-quantitative model facilitated a direct comparison between the simulation and experimental observations.https://www.mdpi.com/2075-4701/10/10/1325Al<sub>6</sub>Mnprecipitationphase-field modelingmicrostructural analysis |
| spellingShingle | Jiwon Park Chang-Seok Oh Joo-Hee Kang Jae-Gil Jung Jung-Moo Lee Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid Metals Al<sub>6</sub>Mn precipitation phase-field modeling microstructural analysis |
| title | Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid |
| title_full | Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid |
| title_fullStr | Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid |
| title_full_unstemmed | Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid |
| title_short | Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid |
| title_sort | solidification and precipitation microstructure simulation of a hypereutectic al mn fe si alloy in semi quantitative phase field modeling with experimental aid |
| topic | Al<sub>6</sub>Mn precipitation phase-field modeling microstructural analysis |
| url | https://www.mdpi.com/2075-4701/10/10/1325 |
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