<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Rapid quenched powdered ribbons Nd13.6Co6.6Ga0.6B5.5Fe73.7 (at. %) were hot pressed at 700° C. Next, the alloys were subjected to die-upset process through heating to 600, 750 and 1000° C and forged at a rate of έ = 1x10-3 s-1 to the stage of deformation equal to ε = 60%. Directional grain growth occurs in the material during this treatment, which is beneficial due to the anisotropic magnetic properties obtained in such materials. Detailed analysis performed using transmission electron microscopy shows the tendency of micro structural changes in the magnet resulting from the application of different temperatures of the processes.</abstract>

Rapid quenched powdered ribbons Nd13.6Co6.6Ga0.6B5.5Fe73.7 (at. %) were hot pressed at 700° C. Next, the alloys were subjected to die-upset process through heating to 600, 750 and 1000° C and forged at a rate of έ = 1x10-3 s-1 to the stage of deformation equal to ε = 60%. Directional grain growth occurs in the material during this treatment, which is beneficial due to the anisotropic magnetic properties obtained in such materials. Detailed analysis performed using transmission electron microscopy shows the tendency of micro structural changes in the magnet resulting from the application of different temperatures of the processes.

Application of Transmission Electron Microscopy in Investigations of Structural Anisotropy of NdFeB Magnets

Institute of Precision Mechanics, Warsaw, Poland

Advances in Materials Science

Rapid quenched powdered ribbons Nd13.6Co6.6Ga0.6B5.5Fe73.7 (at. %) were hot pressed at 700° C. Next, the alloys were subjected to die-upset process through...

Application of Transmission Electron Microscopy in Investigations of Structural Anisotropy of NdFeB Magnets

Published Online: Jan 20, 2009

Page range: 4 - 10

DOI: https://doi.org/10.2478/v10077-008-0039-9

Keywords
NdFeB magnets, die-upset forged magnets, transmission electron microscopy, micro-beam diffraction

This content is open access.

Application of Transmission Electron Microscopy in Investigations of Structural Anisotropy of NdFeB Magnets

Published Online: Jan 20, 2009

Page range: 4 - 10

DOI: https://doi.org/10.2478/v10077-008-0039-9

KeywordsNdFeB magnets, die-upset forged magnets, transmission electron microscopy, micro-beam diffraction

This content is open access.

Keywords
NdFeB magnets, die-upset forged magnets, transmission electron microscopy, micro-beam diffraction