Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy
20CrMnTi steel is widely used in the gear manufacturing field of engineering machinery. The addition of Ti element to steel can effectively improve its low-temperature impact toughness and enhance its mechanical properties. However, during the smelting process of 20CrMnTi, large-sized TiN inclusions...
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Elsevier
2024-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424005994 |
| _version_ | 1797259971155460096 |
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| author | Shuang Liu Fan Yang Lixia Liu Jian Wang Jun Peng Fang Zhang Shengli An |
| author_facet | Shuang Liu Fan Yang Lixia Liu Jian Wang Jun Peng Fang Zhang Shengli An |
| author_sort | Shuang Liu |
| collection | DOAJ |
| description | 20CrMnTi steel is widely used in the gear manufacturing field of engineering machinery. The addition of Ti element to steel can effectively improve its low-temperature impact toughness and enhance its mechanical properties. However, during the smelting process of 20CrMnTi, large-sized TiN inclusions are inevitably formed in the steel, which affects its service performance improvement. This paper focuses on the directional modification behaviors of TiN inclusions in 20CrMnTi gear steel by rare earth Ce under deoxygenation conditions of Si–Ca–Ba alloy. The results show that under the deoxygenation conditions of Si–Ca–Ba alone, there are composite inclusions in 20CrMnTi steel with CaAl12O19 as the core and TiN wrapped around the periphery, all of which have sizes greater than 2 μm. This type of inclusion is square or diamond shaped, and the addition of Si–Ca–Ba deoxygenation alone has poor TiN modification effect on gear steel 20CrMnTi. Adding Ce element can effectively improve the nucleation core of inclusions. The CeAlO3–TiN and (CaAl12O19–Ba–Ce)–TiN composite inclusions are formed, and the TiN inclusions are modified in terms of morphology and size. The average size of inclusions decreases from 4.1 to 3.0 μm, which prevented the excessive growth of pure TiN inclusions to some extent. |
| first_indexed | 2024-04-24T23:17:54Z |
| format | Article |
| id | doaj.art-e9d804842d4a4a6ca04abc9248d4ff0d |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T23:17:54Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-e9d804842d4a4a6ca04abc9248d4ff0d2024-03-17T07:54:34ZengElsevierJournal of Materials Research and Technology2238-78542024-05-0130223230Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloyShuang Liu0Fan Yang1Lixia Liu2Jian Wang3Jun Peng4Fang Zhang5Shengli An6School of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China; School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, ChinaSchool of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China; School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, ChinaSchool of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China; School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, ChinaSchool of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, ChinaSchool of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China; School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, China; Corresponding author. School of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China.School of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China; School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, China; Corresponding author. School of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China.School of Rare Earth Research and Development, Inner Mongolia University of Science and Technology, Baotou, 014010, China; School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou, 014010, China20CrMnTi steel is widely used in the gear manufacturing field of engineering machinery. The addition of Ti element to steel can effectively improve its low-temperature impact toughness and enhance its mechanical properties. However, during the smelting process of 20CrMnTi, large-sized TiN inclusions are inevitably formed in the steel, which affects its service performance improvement. This paper focuses on the directional modification behaviors of TiN inclusions in 20CrMnTi gear steel by rare earth Ce under deoxygenation conditions of Si–Ca–Ba alloy. The results show that under the deoxygenation conditions of Si–Ca–Ba alone, there are composite inclusions in 20CrMnTi steel with CaAl12O19 as the core and TiN wrapped around the periphery, all of which have sizes greater than 2 μm. This type of inclusion is square or diamond shaped, and the addition of Si–Ca–Ba deoxygenation alone has poor TiN modification effect on gear steel 20CrMnTi. Adding Ce element can effectively improve the nucleation core of inclusions. The CeAlO3–TiN and (CaAl12O19–Ba–Ce)–TiN composite inclusions are formed, and the TiN inclusions are modified in terms of morphology and size. The average size of inclusions decreases from 4.1 to 3.0 μm, which prevented the excessive growth of pure TiN inclusions to some extent.http://www.sciencedirect.com/science/article/pii/S223878542400599420CrMnTi gear steelDeoxygenationInclusionsModificationSize |
| spellingShingle | Shuang Liu Fan Yang Lixia Liu Jian Wang Jun Peng Fang Zhang Shengli An Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy Journal of Materials Research and Technology 20CrMnTi gear steel Deoxygenation Inclusions Modification Size |
| title | Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy |
| title_full | Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy |
| title_fullStr | Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy |
| title_full_unstemmed | Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy |
| title_short | Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy |
| title_sort | effects of rare earth ce on tin inclusion modifications in 20crmnti steel under deoxygenation conditions of si ca ba alloy |
| topic | 20CrMnTi gear steel Deoxygenation Inclusions Modification Size |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424005994 |
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