In this work we report the magnetic and structural properties of the Fe_1-xAl_x,0.2 0.2 <=X<= 0.5, alloys produced by mechanical alloying obtained by Mössbauer spectroscopy and X-ray diffraction. Alloys with x = 0.2, 0.3, 0.4 and 0.5, were for milled 12, 24, 36, and 48 hours. All the obtained alloys are in the bcc phase. The obtained Mössbauer spectra are characteristic of disordered ferromagnetic system. It can be noted a tendency to a paramagnetic behaviour when x increases as a consequence of the magnetic diluter character of the Al atoms. The lattice parameter remains nearly constant ( ~ 2.91 Å) for all the milling time and composition. The mean grain size along the (110) direction, for all the samples, are nearly constant with the milling time. However it decreases with the Al concentration from ~ 15.5 nm for 20 at. % Al up to ~ 11 nm for 40 at. % Al, then remains nearly constant with a value ~ 11 nm. This result is a consequence of the fragile character induced by the Al atoms. For the 20 at. % sample the mean grain size in the (211) direction decreases from 10.5 up to 8.5 nm when the milling time changes from 12 up to 24 hours then remains nearly constant. For other Al contents it remains nearly constant. This mean grain size decreases from 10.5 nm at 12 hours, for 20 at. % Al, and from 8.5 nm, for the other milling times, up to ~ 6 nm for 40 at % Al, and the remains nearly constant. The difference between the mean grain sizes in the two reported directions show that the grains are of prolate spheroid form.