Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel
Increasingly MgO content in refining slag and molten steel is the major cause of corrosion of refractory materials at slag line during the refining process of Si–Mn deoxidized tire cord steel, the effects on the crystallization behavior of typical MnO–SiO2–Al2O3 based inclusions in tire cord steel w...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022030882 |
| _version_ | 1811190925890682880 |
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| author | Qiang Zeng Jianli Li Qi Xu Yue Yu |
| author_facet | Qiang Zeng Jianli Li Qi Xu Yue Yu |
| author_sort | Qiang Zeng |
| collection | DOAJ |
| description | Increasingly MgO content in refining slag and molten steel is the major cause of corrosion of refractory materials at slag line during the refining process of Si–Mn deoxidized tire cord steel, the effects on the crystallization behavior of typical MnO–SiO2–Al2O3 based inclusions in tire cord steel were studied. The relation between the formation of high melting point and high hardness inclusions (Al2O3, 3Al2O3·2SiO2, MgO·Al2O3 and 2MgO·SiO2) with MnO–SiO2–Al2O3-(0wt.%, 4wt.%, 8wt.%, 12wt.%, 16wt.%) MgO system was verified by ICP, XRD, SEM-EDS and FactSage 8.0. The results indicated that the crystallization temperature of MnO–SiO2–Al2O3 system increases with the increase of MgO content. MgxMn(2-x)SiO4(1 ≤ x < 2) solid solution is the main crystalline phase due to isomorphism. Only a small amount of 2MgO·SiO2 which is not enough to cause wire breakage was formed in the trial with the highest MgO content (16wt.%) after the low melting point MnO–SiO2–Al2O3 composition added different MgO content and the other three kinds of inclusions were not produced in the five trials. |
| first_indexed | 2024-04-11T14:58:27Z |
| format | Article |
| id | doaj.art-a4796dd9a66747e1bebc479f7bb89ccf |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-11T14:58:27Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-a4796dd9a66747e1bebc479f7bb89ccf2022-12-22T04:17:06ZengElsevierHeliyon2405-84402022-11-01811e11800Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steelQiang Zeng0Jianli Li1Qi Xu2Yue Yu3The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, ChinaThe State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking, Wuhan University of Science and Technology, Wuhan, 430081, China; Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, 430081, China; Corresponding author.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, ChinaThe State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, ChinaIncreasingly MgO content in refining slag and molten steel is the major cause of corrosion of refractory materials at slag line during the refining process of Si–Mn deoxidized tire cord steel, the effects on the crystallization behavior of typical MnO–SiO2–Al2O3 based inclusions in tire cord steel were studied. The relation between the formation of high melting point and high hardness inclusions (Al2O3, 3Al2O3·2SiO2, MgO·Al2O3 and 2MgO·SiO2) with MnO–SiO2–Al2O3-(0wt.%, 4wt.%, 8wt.%, 12wt.%, 16wt.%) MgO system was verified by ICP, XRD, SEM-EDS and FactSage 8.0. The results indicated that the crystallization temperature of MnO–SiO2–Al2O3 system increases with the increase of MgO content. MgxMn(2-x)SiO4(1 ≤ x < 2) solid solution is the main crystalline phase due to isomorphism. Only a small amount of 2MgO·SiO2 which is not enough to cause wire breakage was formed in the trial with the highest MgO content (16wt.%) after the low melting point MnO–SiO2–Al2O3 composition added different MgO content and the other three kinds of inclusions were not produced in the five trials.http://www.sciencedirect.com/science/article/pii/S2405844022030882Tire cord steelSi–Mn deoxidationCrystallizationIsomorphismOlivine |
| spellingShingle | Qiang Zeng Jianli Li Qi Xu Yue Yu Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel Heliyon Tire cord steel Si–Mn deoxidation Crystallization Isomorphism Olivine |
| title | Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel |
| title_full | Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel |
| title_fullStr | Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel |
| title_full_unstemmed | Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel |
| title_short | Effect of MgO on crystallization behavior of MnO–SiO2–Al2O3 based inclusions in tire cord steel |
| title_sort | effect of mgo on crystallization behavior of mno sio2 al2o3 based inclusions in tire cord steel |
| topic | Tire cord steel Si–Mn deoxidation Crystallization Isomorphism Olivine |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022030882 |
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