On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process
A mathematical model of the macrosegregation of continuous cast high carbon steel billet was developed based upon a representative volume element, considering the flow of enriched liquid, solidification rate, and solidification shrinkage as well. It was found that a lower casting velocity, higher co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/14/2/157 |
| _version_ | 1827343152385622016 |
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| author | Yubo Gao Yanping Bao Min Wang Mengyun Zhang |
| author_facet | Yubo Gao Yanping Bao Min Wang Mengyun Zhang |
| author_sort | Yubo Gao |
| collection | DOAJ |
| description | A mathematical model of the macrosegregation of continuous cast high carbon steel billet was developed based upon a representative volume element, considering the flow of enriched liquid, solidification rate, and solidification shrinkage as well. It was found that a lower casting velocity, higher cooling intensity, and shorter solidification interval positively contributed to the inhibition of macrosegregation in a continuously cast billet when a mechanical reduction process was not applied. A numerical expression for the relative flow velocity of liquid was further proposed incorporating such aspects as casting velocity, densities of different phases, and the variation of cross section areas as well. The analysis based on this numerical expression indicated that the overall effect of the reduction process on the macrosegregation of billets depended not only on the reduction zone but also on the reduction amount and its distribution for the active reduction rolls. The test results of further practical plant trials demonstrated a reasonable agreement with the predictions obtained from the proposed numerical model, indicating the reliability of this analysis model to be employed for the continuous casting of high carbon steel billet with strand reduction process. |
| first_indexed | 2024-03-07T22:22:00Z |
| format | Article |
| id | doaj.art-a0c198d2d25543e6a270aff94b2634be |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-07T22:22:00Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-a0c198d2d25543e6a270aff94b2634be2024-02-23T15:27:14ZengMDPI AGMetals2075-47012024-01-0114215710.3390/met14020157On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction ProcessYubo Gao0Yanping Bao1Min Wang2Mengyun Zhang3State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaA mathematical model of the macrosegregation of continuous cast high carbon steel billet was developed based upon a representative volume element, considering the flow of enriched liquid, solidification rate, and solidification shrinkage as well. It was found that a lower casting velocity, higher cooling intensity, and shorter solidification interval positively contributed to the inhibition of macrosegregation in a continuously cast billet when a mechanical reduction process was not applied. A numerical expression for the relative flow velocity of liquid was further proposed incorporating such aspects as casting velocity, densities of different phases, and the variation of cross section areas as well. The analysis based on this numerical expression indicated that the overall effect of the reduction process on the macrosegregation of billets depended not only on the reduction zone but also on the reduction amount and its distribution for the active reduction rolls. The test results of further practical plant trials demonstrated a reasonable agreement with the predictions obtained from the proposed numerical model, indicating the reliability of this analysis model to be employed for the continuous casting of high carbon steel billet with strand reduction process.https://www.mdpi.com/2075-4701/14/2/157macrosegregationhigh carbon steelcontinuous castingstrand reduction process |
| spellingShingle | Yubo Gao Yanping Bao Min Wang Mengyun Zhang On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process Metals macrosegregation high carbon steel continuous casting strand reduction process |
| title | On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process |
| title_full | On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process |
| title_fullStr | On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process |
| title_full_unstemmed | On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process |
| title_short | On the Macrosegregation of Continuous Casting of High Carbon Steel Billet with Strand Reduction Process |
| title_sort | on the macrosegregation of continuous casting of high carbon steel billet with strand reduction process |
| topic | macrosegregation high carbon steel continuous casting strand reduction process |
| url | https://www.mdpi.com/2075-4701/14/2/157 |
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