Effect of Temperature on the Plastic Deformability of Gas Atomized NdFeB Anisotropic Magnets

• Autorzy: Cho Ju-Young , Choa Yong-Ho , Nam Sun-Woo , Rasheed Mohammad Zarar , Kim Taek-Soo

Identyfikatory

DOI

10.24425/amm.2020.133687

• Języki publikacji: EN

Abstrakty

EN

NdFeB anisotropic sintered permanent magnets are typically fabricated by strip casting or melt spinning. In this study, the plastic deformability of an NdFeB alloy was investigated to study the possibility of fabricating anisotropic sintered magnets using gas atomized powders. The results show that the stoichiometric composition Nd₁₂Fe₈₂B₆ softens at high temperatures. The aspect ratio and orientation factor of Nd₁₂Fe₈₂B₆ billets after plastic deformation were found to increase with increasing plastic deformation temperature, particularly above 800°C. This confirms that softening at high temperatures can lead to plastic deformation of Nd₂Fe₁₄B hard magnetic phases.

Słowa kluczowe

EN

NdFeB permanent magnet; stoichiometric composition; gas atomization; plastic deformability; crystal orientation

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 4
• Strony: 1293--1296
• Opis fizyczny: Bibliogr. 13 poz., fot., rys., wzory

Twórcy

autor

Cho Ju-Young

• Korea Institute for Rare Metals, Korea Institute of Industrial Technology, Gaetbeol-ro 12, Songdo-dong, Incheon 21999, Korea
• Hanyang University, Department of Material Science and Chemical Engineering, Ansan, Korea

autor

Choa Yong-Ho

• Hanyang University, Department of Material Science and Chemical Engineering, Ansan, Korea

autor

Nam Sun-Woo

• Korea Institute for Rare Metals, Korea Institute of Industrial Technology, Gaetbeol-ro 12, Songdo-dong, Incheon 21999, Korea

autor

Rasheed Mohammad Zarar

• Korea Institute for Rare Metals, Korea Institute of Industrial Technology, Gaetbeol-ro 12, Songdo-dong, Incheon 21999, Korea
• University of Science and Technology,Critical Materials and Semi-Conductor Packaging Engineering, Daejeon 3413, Republic of Korea

autor

Kim Taek-Soo

• Korea Institute for Rare Metals, Korea Institute of Industrial Technology, Gaetbeol-ro 12, Songdo-dong, Incheon 21999, Korea
• University of Science and Technology,Critical Materials and Semi-Conductor Packaging Engineering, Daejeon 3413, Republic of Korea

Bibliografia

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Uwagi

EN

1. This research was supported by a grant from the project “Development of environment friendly pyrometallurgy process for high purity HREE and materialization” by the Korea Evaluation Institute of Industrial Technology (KEIT), Republic of Korea.

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).