Influence of rare earth La–Ce on inclusions and impact properties of U75V steel.
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| Title: | Influence of rare earth La–Ce on inclusions and impact properties of U75V steel. |
|---|---|
| Authors: | Hao, Wei1 (AUTHOR), Liu, Ke1 (AUTHOR), Zhu, Jun2 (AUTHOR), Ren, Lei1 (AUTHOR) ren_lei@imust.edu.cn, Yang, Jichun1 (AUTHOR) |
| Source: | Metallurgical Research & Technology. 2025, Vol. 122 Issue 3, p1-12. 12p. |
| Subjects: | Rare earth metals, Impact testing, Grain size, Cerium, Manganous sulfide |
| Abstract: | Samples of U75V steel with different contents of lanthanum (La) and cerium (Ce) were melted using a vacuum induction furnace, then were rolled and forged. The morphology, number, aspect ratio, type, and impact properties of the inclusions were tested and analysed. The results indicate that in the absence of rare earth, there are Al2O3–CaO–SiO2–MnO, MnS–Al2O3–CaO–SiO2 composite inclusions, and MnS in U75V steel. After adding a mixture of rare earth elements La–Ce to the steel, the inclusions transform into (La–Ce)2O2S, (La–Ce)S, Ce2O3, (La–Ce)2O2S–(La–Ce)S, and (La–Ce)2O2S–CaO composite inclusions. Adding a mixture of rare earth (La–Ce) significantly reduces the quantity, size, and aspect ratio of the inclusions. The distinction resides in the varying ratio of lanthanum to cerium, resulting in dissimilar circumstances. After adding rare earth lanthanum and cerium, the proportion of small–sized inclusions increases. Sample 2 has the highest proportion of small–sized inclusions. Impact tests and grain size analysed were conducted during the experiment. It was found that sample 2 has the smallest grains and the best impact performance. The "Nailing force" of rare earth inclusions on the microstructure of the steel samples was calculated, and the results show that the addition of rare earth to the steel reduces the microstructural grain size due to the "Nailing force" of the rare earth inclusions. The microstructural grain size of the steel is different due to the differences in the rare earth inclusions generated by different rare earth contents, and this is the fundamental reason for the different microstructural grain sizes of the steel after adding rare earth. [ABSTRACT FROM AUTHOR] |
| Copyright of Metallurgical Research & Technology is the property of EDP Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 185605000 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Influence of rare earth La–Ce on inclusions and impact properties of U75V steel. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hao%2C+Wei%22">Hao, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Ke%22">Liu, Ke</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Jun%22">Zhu, Jun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ren%2C+Lei%22">Ren, Lei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ren_lei@imust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Jichun%22">Yang, Jichun</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Metallurgical+Research+%26+Technology%22">Metallurgical Research & Technology</searchLink>. 2025, Vol. 122 Issue 3, p1-12. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink><br /><searchLink fieldCode="DE" term="%22Impact+testing%22">Impact testing</searchLink><br /><searchLink fieldCode="DE" term="%22Grain+size%22">Grain size</searchLink><br /><searchLink fieldCode="DE" term="%22Cerium%22">Cerium</searchLink><br /><searchLink fieldCode="DE" term="%22Manganous+sulfide%22">Manganous sulfide</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Samples of U75V steel with different contents of lanthanum (La) and cerium (Ce) were melted using a vacuum induction furnace, then were rolled and forged. The morphology, number, aspect ratio, type, and impact properties of the inclusions were tested and analysed. The results indicate that in the absence of rare earth, there are Al2O3–CaO–SiO2–MnO, MnS–Al2O3–CaO–SiO2 composite inclusions, and MnS in U75V steel. After adding a mixture of rare earth elements La–Ce to the steel, the inclusions transform into (La–Ce)2O2S, (La–Ce)S, Ce2O3, (La–Ce)2O2S–(La–Ce)S, and (La–Ce)2O2S–CaO composite inclusions. Adding a mixture of rare earth (La–Ce) significantly reduces the quantity, size, and aspect ratio of the inclusions. The distinction resides in the varying ratio of lanthanum to cerium, resulting in dissimilar circumstances. After adding rare earth lanthanum and cerium, the proportion of small–sized inclusions increases. Sample 2 has the highest proportion of small–sized inclusions. Impact tests and grain size analysed were conducted during the experiment. It was found that sample 2 has the smallest grains and the best impact performance. The "Nailing force" of rare earth inclusions on the microstructure of the steel samples was calculated, and the results show that the addition of rare earth to the steel reduces the microstructural grain size due to the "Nailing force" of the rare earth inclusions. The microstructural grain size of the steel is different due to the differences in the rare earth inclusions generated by different rare earth contents, and this is the fundamental reason for the different microstructural grain sizes of the steel after adding rare earth. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Metallurgical Research & Technology is the property of EDP Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1051/metal/2025027 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Rare earth metals Type: general – SubjectFull: Impact testing Type: general – SubjectFull: Grain size Type: general – SubjectFull: Cerium Type: general – SubjectFull: Manganous sulfide Type: general Titles: – TitleFull: Influence of rare earth La–Ce on inclusions and impact properties of U75V steel. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hao, Wei – PersonEntity: Name: NameFull: Liu, Ke – PersonEntity: Name: NameFull: Zhu, Jun – PersonEntity: Name: NameFull: Ren, Lei – PersonEntity: Name: NameFull: Yang, Jichun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 22713646 Numbering: – Type: volume Value: 122 – Type: issue Value: 3 Titles: – TitleFull: Metallurgical Research & Technology Type: main |
| ResultId | 1 |
