| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
| Presentation Title |
Microstructural Development in Ni-Fe-Mo Permalloy Produced by Laser Powder Bed Fusion |
| Author(s) |
Nicolas Ayers, Yongho Sohn |
| On-Site Speaker (Planned) |
Nicolas Ayers |
| Abstract Scope |
Laser powder bed fusion (LPBF) enables the fabrication of magnetic shielding components with unparalleled design freedom, allowing for more effective shielding geometries, complex internal geometry, and layered structures. However, LPBF does introduce specific microstructural challenges, including the formation of microscopic flaws such as lack-of-fusion defects and keyhole pores, crystallographic texture, non-equiaxed grains, sub-grain cellular structure, and residual stress, which can influence soft magnetic performance. This study examines the microstructural development in Ni-Fe-Mo Permalloy produced by LPBF, and documents changes as a function of heat treatment with respect to fundamentals of thermo-kinetic evolution. Optimum LPBF parameters and heat treatment identified in this study would help to additively manufacture Ni-Fe-Mo Permalloy with the most effective soft magnetic properties for shielding applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Magnetic Materials, Characterization |