Microstructure and magnetostrictive properties of Tb doped Fe–Ga bulk alloys prepared by melt quenching

摘要: The microstructure and magnetostrictive properties were investigated in the Tb doped Fe83Ga17−xTbx (x = 0.05, 0.10, 0.20, 0.30, 0.40, 0.50) bulk rods prepared by melt rapidly quenching. partial solid solubility of Fe–Ga matrix was preliminary detected lattice parameters SEM observation. keeps A2 structure second phase appears surround grain boundary as x ≥ 0.1. \( \left\langle {100} \right\rangle \) preferred orientation is also observed for 0.1 sample along axis quenched rod. saturation magnetostriction first increases maximum value reaches at 0.1, then decreases with addition increasing. initial increase should be associated solution matrix, attributed to orientation, decrease correlated appearance boundary.