|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials Science for High-Performance Permanent Magnets
||High Magnetic Field Processing of Melt-spun Permanent Magnet Alloys
||Michael A McGuire, Orlando Rios, Ben S Conner, William G Carter, Lin Zhou, Brandt Jensen, Kewei Sun, Mianliang Huang, Olena Palasyuk, Kevin Dennis, Ikenna C Nlebedim
|On-Site Speaker (Planned)
||Michael A McGuire
Melt-spinning provides an important source of powders for use in magnet manufacturing. In addition, this rapid solidification technique can generate “over quenched” materials that provide an ideal starting point for non-equilibrium processing studies. Here we discuss some recent results from our investigation of how high magnetic fields can affect the evolution of such materials during thermal processing in which the microstructure and hard magnet properties are developed. Results from both rare-earth magnet materials and Hf-Co-B alloys are presented. We find strong effects of the magnetic field on particle size and crystallinity as well as chemical phase selection during thermal annealing of the melt-spun materials. Our observations demonstrate thermo-magnetic processing provides additional control over key microstructural properties, and is a promising tool for enhancing magnetic performance of advanced permanent magnets.