Formation of an ordered structure in the Cu-49 at % Pd alloy

We compare the kinetics of the formation of an ordered structure in the Cu-49 at % Pd alloy in various initial states and demonstrate that the alloy can be brought into a single-phase, B2-ordered state, at variance with the commonly accepted Cu-Pd phase diagram. The alloy in this structural state has an extremely low resistivity: ρ = 5.48 × 10−8 Ω m.