Microstructural characteristics of ternary rare earth-iron alloys

Author

Westood, P. ; Abell, J.S. ; Pitman, K.C.

Author_Institution

Cept. of Metall. & Mater., Birmingham Univ., UK

Volume

24

Issue

2

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

1873

Lastpage

1875

Abstract

The microstructures of ternary alloy compositions based on the highly magnetostrictive (Tb,Dy)Fe₂ compounds have been investigated by SEM (scanning electron microscope) metallography. The influence of preparation route and heat treatment on the prevailing microstructure has been examined. As-cast and annealed induction melted material have both been examined as a function of iron composition. Lattice parameter variations with composition and heat treatment have been observed. The detailed microstructures have been characterized by BSE imaging, X-ray microanalysis, and electron microprobe analysis. Interpretation of the results has led to the suggestion of a modified phase diagram in the region of the Laves phase compound.

Keywords

X-ray analysis; annealing; crystal microstructure; dysprosium alloys; electron probe analysis; iron alloys; lattice constants; metallography; phase diagrams; scanning electron microscope examination of materials; terbium alloys; BSE imaging; Laves phase compound; SEM; TbDyFe₂; X-ray microanalysis; annealed induction melted material; electron microprobe analysis; heat treatment; highly magnetostrictive; lattice parameter; metallography; microstructures; modified phase diagram; scanning electron microscope; ternary alloy compositions; Annealing; Composite materials; Heat treatment; Iron; Lattices; Magnetic force microscopy; Magnetic materials; Magnetostriction; Microstructure; Scanning electron microscopy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.11631

Filename

11631