Archives of Metallurgy and Materials

Abstract

NdFeB anisotropic sintered permanent magnets are typically fabricated by strip casting or melt spinning. In this study, the plastic deformability of an NdFeB alloy was investigated to study the possibility of fabricating anisotropic sintered magnets using gas atomized powders. The results show that the stoichiometric composition Nd 12 Fe 82 B 6 softens at high temperatures. The aspect ratio and orientation factor of Nd 12 Fe 82 B 6 billets after plastic deformation were found to increase with increasing plastic deformation temperature, particularly above 800℃. This confirms that softening at high temperatures can lead to plastic deformation of Nd 2 Fe 14 B hard magnetic phases.