The micromechanical properties of the structural phases in non-fluxed indurated titanomagnetite pellets.
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| Title: | The micromechanical properties of the structural phases in non-fluxed indurated titanomagnetite pellets. |
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| Authors: | Dmitriev, Andrey N.1 (AUTHOR) andrey.dmitriev@mail.ru, Smirnova, Valentina G.1 (AUTHOR) metallography@mail.ru, Vitkina, Galina Yu.1 (AUTHOR) 20procents@mail.ru, Vyaznikova, Elena A.1 (AUTHOR) vjaznikova@mail.ru, Rogovaya, Svetlana A.2 (AUTHOR) rogovaya@imach.uran.ru |
| Source: | Metallurgist. Jan2026, Vol. 69 Issue 9, p1324-1331. 8p. |
| Abstract: | Compressive strength is one of the strength metrics of indurated pellets in macroscopic tests and is governed by crack initiation and growth, typically through the pellet core where tensile stresses are highest. We used instrumented indentation to study local deformation processes and quantify microhardness, reduced modulus of elasticity, plasticity index, and creep for titanomagnetite/magnetite and titanohematite/hematite phases in the cores of non-fluxed indurated titanomagnetite pellets. SEM/EDS revealed grains composed of titanomagnetite and titanohematite containing minor Al, Mg, and V; the magnetite and hematite phases also contain minor Al and Mg. XRD indicated that the smaller the interplanar spacing and the unit-cell volume, the higher the microhardness of these structural phases. It was shown that the plasticity index for titanomagnetite/magnetite exceed that for titanohematite/hematite, while titanohematite/hematite exhibits lower creep; together, these results point to a greater propensity of the latter to accumulate internal stresses leading to microcrack formation. [ABSTRACT FROM AUTHOR] |
| Copyright of Metallurgist is the property of Springer Nature 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.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 195366375 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11015-025-02056-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 1324 Titles: – TitleFull: The micromechanical properties of the structural phases in non-fluxed indurated titanomagnetite pellets. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Dmitriev, Andrey N. – PersonEntity: Name: NameFull: Smirnova, Valentina G. – PersonEntity: Name: NameFull: Vitkina, Galina Yu. – PersonEntity: Name: NameFull: Vyaznikova, Elena A. – PersonEntity: Name: NameFull: Rogovaya, Svetlana A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00260894 Numbering: – Type: volume Value: 69 – Type: issue Value: 9 Titles: – TitleFull: Metallurgist Type: main |
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