| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials in Energy Environments
|
| Presentation Title |
F-8: LPBF of Nd-based Permanent Magnets |
| Author(s) |
Sudha Krishnan, Jeffrey Shield |
| On-Site Speaker (Planned) |
Sudha Krishnan |
| Abstract Scope |
Laser powder bed fusion (LPBF) is a promising additive manufacturing technique to fabricate fully dense, net shape Nd-Fe-B-based permanent magnets while achieving design flexibility and waste reduction. The primary challenge in melt-processed fabrication techniques is obtaining the proper microstructures. In this work, the solidification conditions during LPBF are simulated by melt spinning at moderate (5-20 m/s) wheel speeds. This allows batch-scale alloy development for microstructure optimization. Selected alloys are then printed using LPBF. The printing parameters have been optimized and the samples in the shape of a thin wall of about 2 to 3 mm in height were additively manufactured. This talk will detail the magnetic, microstructure, and density measurements that were carried out on the printed parts. Relatively good as-built magnetic properties were achieved, though the structures are isotropic, and full-density parts were produced. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Solidification, |