Influence of Heat Treatments on the Structure of FeAl Powders Mixture Obtained by Mechanical Alloying

AbstractA nanocrystalline Fe(Al) solid solution was prepared by mechanical alloying (MA) of Fe and Al elemental powders using a planetary ball mill under argon atmosphere. The powder milled for 20h was annealed at 250, 550 and 650°C for 1h. The phase transformations and structural changes occurring in the studied material during mechanical alloying and during subsequent annealing were investigated by X-ray diffraction. The morphology of the powders after MA was examined via SEM and TEM