The effect of crystal orientation and grain alignment on the properties of magnetostrictive materials was investigated in TbFe2 alloys prepared via solidification under different high magnetic field conditions. The magnetostrictive property and magnetization behavior of the alloys were studied. The results revealed that the alloys that are oriented along the easy magnetization axis exhibit better magnetostrictive property in the low-field intensity region (than in the high-field intensity region). However, in the high-field intensity region, regular alignment of grains in the magnetization direction is essential for continued improvement in the magnetostrictive property of the alloys. If the magnetic phases of the TbFe2 alloy are oriented along the easy magnetization axis and the grains of the magnetic phases are aligned regularly along the direction of magnetization, the alloy will exhibit excellent magnetostriction property. This study may serve as a reference for the preparation of high performance rare-earth iron-based magnetostrictive materials.

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