Abstract:The electrochemical behaviors of Mg(II) and Ce(III) as well as the alloying process of Mg(II) and Ce(III) on tungsten electrodes in the molten salt system of KCl-NaCl-CeCl3-MgCl2 at 973 K have been investigated by cyclic voltammetry (CV), square-wave voltammetry (SWV), and open-circuit chrono-potentiostatic (OCP) methods. Based on the results of electrochemical analysis, the Mg-Ce alloys were prepared by electrolysis at a constant potential of -2.1 V (vs.Ag/AgCl) for 12 h using a tungsten wire as the working electrode and a graphite rod as the auxiliary electrode. The composition and elemental distribution of the electrolytically obtained alloys were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy spectrometry (EDS), which showed that the basal phase of the alloys was Mg17Ce2 and the second phase was Mg3Ce.