Title :
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
fDate :
3/1/1988 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
