Cold-working and annealing of the chemically ordered L10-phase Fe50-Pd50

We performed an experimental investigation of the annealing behavior of equiatomic γ1-FePd at temperatures below the critical disordering temperature after cold deformation by rolling in the fully L10-ordered state. We used scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) to monitor microstructural changes. We used vibrating sample magnetometer (VSM) measurements to determine the evolution of the coercivity of the material in response to cold deformation and annealing. We discuss our findings in the context of previous reports related to studies of recovery and recrystallization during annealing after cold deformation in intermetallic systems that undergo ordering transformations.