Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy
The rotor and the stator of electrical machines consists of an assembly of soft magnetic laminates typically fabricated by punching from the thin sheets. In this work, the effect of edge deformation on the magnetic properties of laminates resulting from the punching of Fe49-Co49-V2 alloy thin sheets...
| Príomhchruthaitheoirí: | , , , , , |
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| Formáid: | Journal Article |
| Teanga: | English |
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2022
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| Ábhair: | |
| Rochtain ar líne: | https://hdl.handle.net/10356/155495 |
| _version_ | 1826130179191209984 |
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| author | Li, Zhiqiang Chen, Zhong Oh, Joo Tien Wang, Zijing Li, Feng Lambourne, Alexis |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Li, Zhiqiang Chen, Zhong Oh, Joo Tien Wang, Zijing Li, Feng Lambourne, Alexis |
| author_sort | Li, Zhiqiang |
| collection | NTU |
| description | The rotor and the stator of electrical machines consists of an assembly of soft magnetic laminates typically fabricated by punching from the thin sheets. In this work, the effect of edge deformation on the magnetic properties of laminates resulting from the punching of Fe49-Co49-V2 alloy thin sheets is investigated. Ring samples with varying circumference to area ratios, defined by a CTAR index, were made by punching and subsequently annealed to optimize the magnetic properties. The magnetic properties of the annealed samples were investigated for its correlation with the microstructure. It was found that the magnetic performance of Fe49-Co49-V2 alloy decreases with increasing volume of edge deformation, corresponding to an increasing CTAR index. The deterioration in the magnetic properties can be attributed to the high density of recrystallized grains along the edges of the Fe49-Co49-V2 samples. These recrystallized grains are significantly smaller than those away from the edges and pose a higher degree of restriction to the magnetic domain wall movement. The decrease in magnetic properties from edge damage can be mitigated by increasing the annealing time to allow for grain growth at the edges. |
| first_indexed | 2024-10-01T07:52:15Z |
| format | Journal Article |
| id | ntu-10356/155495 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:52:15Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1554952022-03-02T08:19:06Z Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy Li, Zhiqiang Chen, Zhong Oh, Joo Tien Wang, Zijing Li, Feng Lambourne, Alexis School of Materials Science and Engineering Rolls-Royce@NTU Corporate Lab Engineering::Materials Annealing Punching The rotor and the stator of electrical machines consists of an assembly of soft magnetic laminates typically fabricated by punching from the thin sheets. In this work, the effect of edge deformation on the magnetic properties of laminates resulting from the punching of Fe49-Co49-V2 alloy thin sheets is investigated. Ring samples with varying circumference to area ratios, defined by a CTAR index, were made by punching and subsequently annealed to optimize the magnetic properties. The magnetic properties of the annealed samples were investigated for its correlation with the microstructure. It was found that the magnetic performance of Fe49-Co49-V2 alloy decreases with increasing volume of edge deformation, corresponding to an increasing CTAR index. The deterioration in the magnetic properties can be attributed to the high density of recrystallized grains along the edges of the Fe49-Co49-V2 samples. These recrystallized grains are significantly smaller than those away from the edges and pose a higher degree of restriction to the magnetic domain wall movement. The decrease in magnetic properties from edge damage can be mitigated by increasing the annealing time to allow for grain growth at the edges. This work was conducted within the Rolls-Royce@NTU Corporate Lab with support from the Industry Alignment Fund (IAF) Singapore under the Corp Lab@University Scheme. 2022-03-02T08:19:06Z 2022-03-02T08:19:06Z 2020 Journal Article Li, Z., Chen, Z., Oh, J. T., Wang, Z., Li, F. & Lambourne, A. (2020). Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy. Journal of Magnetism and Magnetic Materials, 510, 166978-. https://dx.doi.org/10.1016/j.jmmm.2020.166978 0304-8853 https://hdl.handle.net/10356/155495 10.1016/j.jmmm.2020.166978 2-s2.0-85084684066 510 166978 en Journal of Magnetism and Magnetic Materials © 2020 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Materials Annealing Punching Li, Zhiqiang Chen, Zhong Oh, Joo Tien Wang, Zijing Li, Feng Lambourne, Alexis Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy |
| title | Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy |
| title_full | Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy |
| title_fullStr | Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy |
| title_full_unstemmed | Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy |
| title_short | Effect of punching edge deformation on the magnetic properties of Fe₄₉-Co₄₉-V₂ alloy |
| title_sort | effect of punching edge deformation on the magnetic properties of fe₄₉ co₄₉ v₂ alloy |
| topic | Engineering::Materials Annealing Punching |
| url | https://hdl.handle.net/10356/155495 |
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