A Mössbauer spectroscopy and neutron diffraction study of magnetostrictive, melt-spun Fe-Ga alloy ribbons

► Melt-spun Fe100−xGax alloys with 15≤x≤17.5 have a disordered bcc structure. ► Ribbons with x=19.5 develop short-range ordered D03 phase upon annealing. ► The x=22.5 ribbons show mainly D03 phase with a fraction of bcc phase.