Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM
The solidification structure of Ti-6Al-4V round ingot during the electron beam cold hearth melting (EBCHM) directly determines the quality of the ingot and the performance of the subsequent rolled coil. In this paper, the Cellular Automaton Finite Element (CAFE) method is used to numerically simulat...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abeb4d |
| _version_ | 1797746667112366080 |
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| author | Bing-Bing Peng Xiang-Ming Li Xian Wang Jian Mo Lei Luo |
| author_facet | Bing-Bing Peng Xiang-Ming Li Xian Wang Jian Mo Lei Luo |
| author_sort | Bing-Bing Peng |
| collection | DOAJ |
| description | The solidification structure of Ti-6Al-4V round ingot during the electron beam cold hearth melting (EBCHM) directly determines the quality of the ingot and the performance of the subsequent rolled coil. In this paper, the Cellular Automaton Finite Element (CAFE) method is used to numerically simulate the solidification structure of Ti-6Al-4V ingot. Firstly, the mathematical model is established with a numerical solution. Secondly, effects of process parameters including the pouring temperature and pulling speed on the solidification structure are revealed. The results show that the microstructures predicted by the numerical method match the experimental results. For the case of fixed pulling speed, a reduction in the pouring temperature leads to the grain refinement and the decreased volatilization of Al. With an increase of the pulling speed, the number of grains first increases and then decreases, but the average grain size first decreases and then increases. Furthermore, the maximum grain size monotonically increases with increasing the pulling speed. Thus, the fine solidified structure with fine grains can be obtained at the pouring temperature of 1700 °C and the pulling speed of 4 × 10 ^−4 m s ^−1 . |
| first_indexed | 2024-03-12T15:40:07Z |
| format | Article |
| id | doaj.art-5ccf2503de8d4703b1cea7742c7f9853 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:40:07Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-5ccf2503de8d4703b1cea7742c7f98532023-08-09T16:01:28ZengIOP PublishingMaterials Research Express2053-15912021-01-018404650510.1088/2053-1591/abeb4dSimulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHMBing-Bing Peng0Xiang-Ming Li1https://orcid.org/0000-0002-1784-2592Xian Wang2Jian Mo3Lei Luo4Faculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 65000, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 65000, People’s Republic of ChinaKunming Institute of Precious Metals, Kunming 65000, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 65000, People’s Republic of ChinaCollege of Materials Science and Engineering, Beijing University of Technology , Beijing 100000, People’s Republic of ChinaThe solidification structure of Ti-6Al-4V round ingot during the electron beam cold hearth melting (EBCHM) directly determines the quality of the ingot and the performance of the subsequent rolled coil. In this paper, the Cellular Automaton Finite Element (CAFE) method is used to numerically simulate the solidification structure of Ti-6Al-4V ingot. Firstly, the mathematical model is established with a numerical solution. Secondly, effects of process parameters including the pouring temperature and pulling speed on the solidification structure are revealed. The results show that the microstructures predicted by the numerical method match the experimental results. For the case of fixed pulling speed, a reduction in the pouring temperature leads to the grain refinement and the decreased volatilization of Al. With an increase of the pulling speed, the number of grains first increases and then decreases, but the average grain size first decreases and then increases. Furthermore, the maximum grain size monotonically increases with increasing the pulling speed. Thus, the fine solidified structure with fine grains can be obtained at the pouring temperature of 1700 °C and the pulling speed of 4 × 10 ^−4 m s ^−1 .https://doi.org/10.1088/2053-1591/abeb4dTi-6Al-4V round ingotcontinuous castingtemperature fieldmicrostructure |
| spellingShingle | Bing-Bing Peng Xiang-Ming Li Xian Wang Jian Mo Lei Luo Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM Materials Research Express Ti-6Al-4V round ingot continuous casting temperature field microstructure |
| title | Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM |
| title_full | Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM |
| title_fullStr | Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM |
| title_full_unstemmed | Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM |
| title_short | Simulation study on temperature field and microstructure of Ti-6Al-4V alloy round ingot during EBCHM |
| title_sort | simulation study on temperature field and microstructure of ti 6al 4v alloy round ingot during ebchm |
| topic | Ti-6Al-4V round ingot continuous casting temperature field microstructure |
| url | https://doi.org/10.1088/2053-1591/abeb4d |
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