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<110>oriented rods of TbDyFe giant magnetostrictive alloys have been prepared with the help of the zone melting direc- tional solidification technique with a high temperature gradient.To acquire optimal magnetostrictive properties at low magnetic field, the TbDyFe alloys have been heat-treated at different temperatures and cooled at different rates.The relationships between the proc- ess of the heat treatment,microstructure,defects,and magnetostrictive properties of the TbDyFe materials have been studied.
<110> oriented rods of TbDyFe giant magnetostrictive alloys have been prepared with the help of the zone melting direc- tional solidification technique with a high temperature gradient. To obtain preferable magnetostrictive properties at low magnetic field, the TbDyFe alloys have been heat-treated at different temperatures and cooled at different rates.The relationships between the proc- ess of the heat treatment, microstructure, defects, and magnetostrictive properties of the TbDyFe materials have been studied.