About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Metals: Multiscale and Non-Equilibrium Solidification Fundamentals
|
| Presentation Title |
Linkage between process-induced microstructure and magnetic property of Nd-Fe-B permanent magnets additively manufactured by laser powder bed fusion |
| Author(s) |
Yeon Woo Kim, Sujin Lee, Yoona Lee, Jae Bok Seol, Namhyun Kang, Yoon Suk Choi, Ji-Hun Yu, Jung-Goo Lee, Tae-Hoon Kim, Jeong Min Park |
| On-Site Speaker (Planned) |
Yeon Woo Kim |
| Abstract Scope |
Nd-Fe-B permanent magnets are widely used in high-performance electromagnetic applications due to their excellent magnetic properties. While conventional fabrication methods of Nd-Fe-B magnets such as sintering and hot deformation have been extensively studied, they impose limitations on design flexibility and material efficiency. Laser powder bed fusion (LPBF), an additive manufacturing technique, offers new possibilities for fabricating Nd-Fe-B magnets with tailored microstructures and enhanced performance. However, the correlation between process parameters, microstructural evolution, and magnetic properties remains insufficiently understood. This study investigates the effects of LPBF process parameters on the microstructural characteristics and magnetic performance of Nd-Fe-B magnets. Particular emphasis is placed on the hierarchical and heterogeneous microstructure formed in Nd-Fe-B magnets due to rapid solidification during LPBF, the influence of thermal gradients on grain morphology, and the impact of process-induced phase evolution on magnetic properties. The findings provide insights into optimizing fabrication parameters for achieving high-performance Nd-Fe-B magnets through LPBF. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Magnetic Materials, Solidification |