-nickel alloy that at equilibrium, consists of an a phase of composition 37wt% Ni-63 wt% Cu and also a liquid phase of composition 20 wt% Ni-80wt% Cu?...

is it possible to have copper-nickel alloy that at equilibrium, consists of an a phase of composition 37wt% Ni-63 wt% Cu and also a liquid phase of composition 20 wt% Ni-80wt% Cu? if so what will be the approximate temperature of the alloy ? if this is not possible. explain why