About this Abstract |
Meeting |
6th International Congress on 3D Materials Science (3DMS 2022)
|
Symposium
|
6th International Congress on 3D Materials Science (3DMS 2022)
|
Presentation Title |
Amorphous-crystalline Nanostructural Nd-Fe-B Permanent Magnets using Laser Powder Bed Fusion: Metallurgy and Magnetic Properties |
Author(s) |
Julan Wu, Nesma T. Aboulkkhair, Michele Degano, Richard Hague, Ian Ashcroft |
On-Site Speaker (Planned) |
Julan Wu |
Abstract Scope |
Laser powder-bed fusion (L-PBF) additive manufacturing (AM) has attracted wide interest for the production of Nd-Fe-B permanent magnets, benefitting from minimising the mineral waste of the rare-earth elements and post-process procedures. Most research on L-PBF Nd-Fe-B focused on reducing defects in the printed parts and the resultant magnetic properties. Detailed analysis of the microstructure that results in the permanent magnetic properties is yet to be published. In this research, a combination of high-resolution microstructural investigations were conducted for this purpose. For the first time, an in-depth analysis of the grain structure in terms of the morphology, size distribution, and texture is presented and correlated to the permanent magnetic performance. The mechanism of the phase formation, the nanocrystalline microstructure and the process-structure-property relationship is presented in this paper to provide guidelines for future development of the L-PBF Nd-Fe-B. |
Proceedings Inclusion? |
Definite: Other |