Analysis of metallurgical defects in enamel steel castings
The relevant experiments and studies were conducted to address the metallurgical defects such as subcutaneous bubbles and slag inclusions occurring during the enamel steel continuous casting process. According to the high-temperature experimental results, calculations were made to determine the chan...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2024-03-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2022-0327 |
| _version_ | 1797246697350365184 |
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| author | Rui Qixuan Huang Zijian Li Yingjiang Hu Xiaoguang |
| author_facet | Rui Qixuan Huang Zijian Li Yingjiang Hu Xiaoguang |
| author_sort | Rui Qixuan |
| collection | DOAJ |
| description | The relevant experiments and studies were conducted to address the metallurgical defects such as subcutaneous bubbles and slag inclusions occurring during the enamel steel continuous casting process. According to the high-temperature experimental results, calculations were made to determine the changes in viscosity and tension due to the steel reaction with the slag. Based on the experimental findings, there was a notable variation in the content of SiO2 and Al2O3 in the slag before and after the reaction. The concentration of the element Al in the steel melt significantly decreased, whereas the concentration of Ti showed a minimal change. These observations indicate that the reduction of SiO2 at the slag–steel interface is predominantly attributed to the role of Al. The calculation results showed that at 300 s of reaction time, the viscosity rapidly increased from 0.108 to 0.133 Pa·s and then slowly increased to 0.155 Pa·s; The interfacial tension rapidly decreased from its initial value of 1,380 mJ·m−2 to a minimum of 1,320 mJ·m−2, and it then slowly increased to an equilibrium state. Therefore, the main cause of the occurrence of porosity defects in the enamel steel continuous casting process is the reduction of interfacial tension between slag, steel, and gas caused by the reaction between the slag and steel, as well as the foaming of the slag. |
| first_indexed | 2024-04-24T19:46:55Z |
| format | Article |
| id | doaj.art-fb8c9bbe094948e98f8636c708e5fe75 |
| institution | Directory Open Access Journal |
| issn | 2191-0324 |
| language | English |
| last_indexed | 2024-04-24T19:46:55Z |
| publishDate | 2024-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-fb8c9bbe094948e98f8636c708e5fe752024-03-25T07:28:45ZengDe GruyterHigh Temperature Materials and Processes2191-03242024-03-01431pp. 354310.1515/htmp-2022-0327Analysis of metallurgical defects in enamel steel castingsRui Qixuan0Huang Zijian1Li Yingjiang2Hu Xiaoguang3School of Metallurgy Engineering, Anhui University of Technology, Ma’anshan243032, ChinaSchool of Metallurgy Engineering, Anhui University of Technology, Ma’anshan243032, ChinaBaowu Ma Steel Co., Ltd, Fourth Rolling Steel Mill, Ma’anshan243003, ChinaBaowu Ma Steel Co., Ltd, Fourth Rolling Steel Mill, Ma’anshan243003, ChinaThe relevant experiments and studies were conducted to address the metallurgical defects such as subcutaneous bubbles and slag inclusions occurring during the enamel steel continuous casting process. According to the high-temperature experimental results, calculations were made to determine the changes in viscosity and tension due to the steel reaction with the slag. Based on the experimental findings, there was a notable variation in the content of SiO2 and Al2O3 in the slag before and after the reaction. The concentration of the element Al in the steel melt significantly decreased, whereas the concentration of Ti showed a minimal change. These observations indicate that the reduction of SiO2 at the slag–steel interface is predominantly attributed to the role of Al. The calculation results showed that at 300 s of reaction time, the viscosity rapidly increased from 0.108 to 0.133 Pa·s and then slowly increased to 0.155 Pa·s; The interfacial tension rapidly decreased from its initial value of 1,380 mJ·m−2 to a minimum of 1,320 mJ·m−2, and it then slowly increased to an equilibrium state. Therefore, the main cause of the occurrence of porosity defects in the enamel steel continuous casting process is the reduction of interfacial tension between slag, steel, and gas caused by the reaction between the slag and steel, as well as the foaming of the slag.https://doi.org/10.1515/htmp-2022-0327surface defectsinterface reactioninterfacial tension |
| spellingShingle | Rui Qixuan Huang Zijian Li Yingjiang Hu Xiaoguang Analysis of metallurgical defects in enamel steel castings High Temperature Materials and Processes surface defects interface reaction interfacial tension |
| title | Analysis of metallurgical defects in enamel steel castings |
| title_full | Analysis of metallurgical defects in enamel steel castings |
| title_fullStr | Analysis of metallurgical defects in enamel steel castings |
| title_full_unstemmed | Analysis of metallurgical defects in enamel steel castings |
| title_short | Analysis of metallurgical defects in enamel steel castings |
| title_sort | analysis of metallurgical defects in enamel steel castings |
| topic | surface defects interface reaction interfacial tension |
| url | https://doi.org/10.1515/htmp-2022-0327 |
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