| Abstract Scope |
Laser powder-bed fusion (L-PBF) as an additive manufacturing technique, has demonstrated excellent capabilities in degrees of freedom in manufacturing that are otherwise unattainable. Nd-Fe-B based permanent magnetic materials having the highest magnetic energy product have attracted significant interests for the future development of more efficient and lighter motors for robots, electric vehicles, and aerospace applications. The potential of combining the functional element in Nd-Fe-B and the manufacturing capabilities of L-PBF promises new prospects for functional AM. Pure metallic Nd-Fe-B permanent magnet with high density (91%) and remanence of 0.65T has been successfully produces via L-PBF. Understanding the microstructure of the L-PBF Nd-Fe-B is essential for the development of higher density and magnetic properties. In this research, a combination of high resolution microstructural investigations with SEM, TEM and metallurgy studies with EDS, XRD and EBSD will bring new insight into the understanding of L-PBF Nd-Fe-B material. |