Deformation behavior of polycrystalline Galfenol at elevated temperatures

Ductility enhancement and magnetostriction of polycrystalline Fe–Ga based alloys

“…Although single crystal binary Fe-Ga alloys have shown good robustness and toughness, in the work of Cheng et al [9] on the deformation behavior of polycrystalline Fe-Ga alloys, they found that specimens were too brittle to make thin sheets because of their brittle grain boundary. It was reported that additions of B, V, Cr, Mo, Nb and NbC could improve the rolling ability of Fe-Ga alloy [10,11], although V, Cr and Mo additions have been shown to reduce the magne- * Corresponding author.…”

Assessment of Fe–Ga–B alloy magnetomechanical behavior

“…6 On the other hand, the introduction of B has a positive effect on the ductility of the alloys 7,8 because binary Fe-Ga alloys are not ductile enough at room temperature and fracture during the rolling process. 9 To evaluate only the effect of the Fe 2 B phase on the microstructure and magnetostrictive properties of the Fe-Ga alloy with 18.6 at.% Ga, the ternary alloy was designed so that the matrix has the same composition as the binary alloy. In addition to the magnetostriction, the piezomagnetic (PZM) behavior that is particularly important for applications of force sensors and actuators is also evaluated.…”

Effects of Precipitate Element Addition on Microstructure and Magnetic Properties in Magnetostrictive Fe83Ga17alloy

“…Efforts have been made to get thin sheets by rolling process [8][9][10]. However, the polycrystalline Fe 81 Ga 19 binary alloy cracked and fractured along grain boundaries during hot rolling and was too brittle to make thin sheets.…”