Kinetics of Reordering in A Nanograined FeAl Alloy

Study of the weight of different contributions to the magnetic reinforcement in the order–disorder transition of FeAl alloys

“…The equilibrium lattice parameter of the calculated A2 structures is larger than the corresponding ordered (B2 and DO3) ones (see Table 1), in good agreement with X-ray diffraction observations after severe deformation in alloys of similar composition [4]. Moreover, it must be remarked that the theoretical increase of lattice parameter between A2 and D03 structures of Fe 3 Al is of 0.75%, in very good agreement with the experimental increase after deformation of about 0.7% found both for Fe 70 Al 30 [5] and Fe 60 Al 40 [4] composition.…”

Phase transformations during mechanical alloying of Fe–50% Al and subsequent heating of the milling product

“…The DSC profile and the total enthalpy of the exothermic effects obtained for the powder after 3 h of the MA process are similar to those reported in the literature (330 J/g for the same composition and milling time) [24]. Such DSC results have been described and analysed but for the mechanically milled FeAl intermetallic [33,34]. However, Morris-Muñoz et al adapted this analysis of DSC results to mechanical alloying of elemental Fe-Al powders [24].…”

B2 long-range order in mechanically alloyed Fe53.3−0.6x Co46.7−0.4x Sn x (2 ≤ x ≤ 26) annealed at moderate temperatures

“…Some examples, among many, of ordered alloys disordered by ball-milling whose order is re-established by subsequent annealing are L2 1 Ni 2 MnSn [32], L1 2 Ni 3 Al [33], and B2 Fe 60 Al 40 [34]. In addition, mechanical alloying followed by annealing makes possible the formation of metastable ordered alloys from alloys which are not long-range ordered at equilibrium but are prone to ordering.…”