Magnetostriction of TbFe2-based alloy treated in a semi-solid state with a high magnetic field

We investigated the effect of a high magnetic field on the magnetostriction of TbFe2-based alloy during a semi-solid state process. With the application of a high magnetic field, magnetostrictions under free and compressive prestress conditions remarkably increased. Obvious magnetically anisotropic behavior of the TbFe2-based alloy was observed. A high 〈111〉 orientation of TbFe2 phase along the magnetic-field direction was produced. The increase in magnetostriction and the magnetically anisotropic behavior were attributed to the 〈111〉 orientation of TbFe2 phase during the treatment in the semi-solid state induced by the magnetic field.