Abstract
A nanostructured disordered Fe(Al) solid solution was obtained by mechanical alloying (MA) for 20 h in a high-energy planetary ball-mill. The phase transformations and structural changes occurring in the studied material during MA and during subsequent heat treatments were investigated by X-ray diffraction. The recovery and the recrystallization of this compound are occurred due to the ordered nature of the grain boundaries after annealing at temperature ranging from 250 and 650 degrees C. The evolution of the thermal behaviour of the milled and heated powders was examined by differential scanning and calorimetry. We have shown that the occurrence of Fe2Al5 Fe(4)Al(13)and Fe3Al nanocrystalline phases at elevated temperature.