A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method
High-pressure torsion (HPT) is a severe plastic deformation technique where a sample is subjected to torsional shear straining under a high hydrostatic pressure. The HPT method is usually employed to create ultrafine-grained nano-structures, making it widely used in processing many kinds of material...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/6/2129 |
| _version_ | 1797445658000490496 |
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| author | Zhi-Rui Wang Ping-Zhan Si Jihoon Park Chul-Jin Choi Hong-Liang Ge |
| author_facet | Zhi-Rui Wang Ping-Zhan Si Jihoon Park Chul-Jin Choi Hong-Liang Ge |
| author_sort | Zhi-Rui Wang |
| collection | DOAJ |
| description | High-pressure torsion (HPT) is a severe plastic deformation technique where a sample is subjected to torsional shear straining under a high hydrostatic pressure. The HPT method is usually employed to create ultrafine-grained nano-structures, making it widely used in processing many kinds of materials such as metals, glasses, biological materials, and organic compounds. Most of the published HPT results have been focused on the microstructural development of non-magnetic materials and their influence on the mechanical properties. The HPT processing of magnetic materials and its influence on the structural and magnetic properties have attracted increasing research interest recently. This review describes the application of HPT to magnetic materials and our recent experimental results on Mn<sub>3</sub>O<sub>4</sub>, Mn<sub>4</sub>N, and MnAl-based alloys. After HPT, most magnetic materials exhibit significantly reduced grain size and substantially enhanced coercivity. |
| first_indexed | 2024-03-09T13:29:00Z |
| format | Article |
| id | doaj.art-2edbb0b0e6e14852b4da3ce905e3e9a3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T13:29:00Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-2edbb0b0e6e14852b4da3ce905e3e9a32023-11-30T21:20:01ZengMDPI AGMaterials1996-19442022-03-01156212910.3390/ma15062129A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion MethodZhi-Rui Wang0Ping-Zhan Si1Jihoon Park2Chul-Jin Choi3Hong-Liang Ge4College of Materials Science and Chemistry, China Jiliang University, Hangzhou 310018, ChinaCollege of Materials Science and Chemistry, China Jiliang University, Hangzhou 310018, ChinaPowder and Ceramic Division, Korea Institute of Materials Science, Changwon 51508, KoreaPowder and Ceramic Division, Korea Institute of Materials Science, Changwon 51508, KoreaCollege of Materials Science and Chemistry, China Jiliang University, Hangzhou 310018, ChinaHigh-pressure torsion (HPT) is a severe plastic deformation technique where a sample is subjected to torsional shear straining under a high hydrostatic pressure. The HPT method is usually employed to create ultrafine-grained nano-structures, making it widely used in processing many kinds of materials such as metals, glasses, biological materials, and organic compounds. Most of the published HPT results have been focused on the microstructural development of non-magnetic materials and their influence on the mechanical properties. The HPT processing of magnetic materials and its influence on the structural and magnetic properties have attracted increasing research interest recently. This review describes the application of HPT to magnetic materials and our recent experimental results on Mn<sub>3</sub>O<sub>4</sub>, Mn<sub>4</sub>N, and MnAl-based alloys. After HPT, most magnetic materials exhibit significantly reduced grain size and substantially enhanced coercivity.https://www.mdpi.com/1996-1944/15/6/2129high-pressure torsionmagnetic materialsultrafine grainsevere plastic deformationnanocrystallinecoercivity |
| spellingShingle | Zhi-Rui Wang Ping-Zhan Si Jihoon Park Chul-Jin Choi Hong-Liang Ge A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method Materials high-pressure torsion magnetic materials ultrafine grain severe plastic deformation nanocrystalline coercivity |
| title | A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method |
| title_full | A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method |
| title_fullStr | A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method |
| title_full_unstemmed | A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method |
| title_short | A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method |
| title_sort | review of ultrafine grained magnetic materials prepared by using high pressure torsion method |
| topic | high-pressure torsion magnetic materials ultrafine grain severe plastic deformation nanocrystalline coercivity |
| url | https://www.mdpi.com/1996-1944/15/6/2129 |
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