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Microstructure evolution of hot-deformed Nd-Fe-B anisotropic magnets

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4867960· OSTI ID:22273763
 [1]; ;  [1]; ;  [2]
  1. Elements Strategy Initiative Center for Magnetic Materials, National Institute for Materials Science, Tsukuba 305-0047 (Japan)
  2. Daido Steel Co. Ltd., Nagoya 457-8545 (Japan)

The microstructural evolution of hot-deformed Nd-Fe-B magnets in each stage of hot-deformation process was studied using transmission electron microscopy and three dimensional atom probe (3DAP). The anisotropic growth of initially isotropic grains in rapidly solidified alloy occurs by annealing without pressing. 3DAP analyses showed a higher concentration of rare-earth elements in the intergranular phase parallel to the flat surface of platelet shaped Nd{sub 2}Fe{sub 14}B grains compared to that in the intergranular phase at the side of platelets.

OSTI ID:
22273763
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 17 Vol. 115; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English

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