Corrosion behaviour of textured and isotropic nanocrystalline NdFeB-based magnets

Author

Gebert, Andreas ; El-Moneim, A.A. ; Gutfleisch, Oliver

Author_Institution

Inst. of Metallic Mater., IFW Dresden, Germany

fYear

2002

Abstract

Summary form only given. Textured nanocrystalline Nd/sub 14/Fe/sub 80/B/sub 6/ and Nd/sub 12/Dy/sub 2/Fe/sub 73.2/Co/sub 6.6/Ga/sub 0.6/B/sub 5.6/ magnets have been produced from melt-spun materials by hot pressing and subsequent die upsetting. Microstructural characterisation has been performed using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive analysis (EDX). Both texturation and Co and Ga additions improve corrosion performance.

Keywords

X-ray chemical analysis; X-ray diffraction; alloying additions; boron alloys; corrosion resistance; crystal microstructure; hot pressing; iron alloys; melt spinning; nanostructured materials; neodymium alloys; permanent magnets; scanning electron microscopy; texture; Co/Ga additions effects; EDX; Nd/sub 12/Dy/sub 2/Fe/sub 73.2/Co/sub 6.6/Ga/sub 0.6/B/sub 5.6/; Nd/sub 14/Fe/sub 80/B/sub 6/; NdFeB-based magnets; SEM; X-ray diffraction; XRD; corrosion performance; die upsetting; energy dispersive analysis; hot pressing; isotropic magnets; melt-spun materials; microstructural characterisation; nanocrystalline magnets; scanning electron microscopy; texturation; textured magnets; Corrosion; Dispersion; Iron; Magnetic materials; Magnets; Neodymium; Pressing; Scanning electron microscopy; X-ray diffraction; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International

Conference_Location

Amsterdam, The Netherlands

Print_ISBN

0-7803-7365-0

Type

conf

DOI

10.1109/INTMAG.2002.1000830

Filename

1000830