Study on the intermetallic phases in the Mg-Ce system: Part II. Diffusion couple investigation

Mg-Ce diffusion couple annealed at 400 degree C was investigated via electron probe microanalysis (EPMA), and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS). The results validated the compositions of the intermetallic phases experimentally determined by Zhang et al. [1] on the Mg-rich side of the binary phase diagram and refined the phase diagram suggested by Zhang et al. [2] for the composition range of 38-70 wt% Ce. A revised equilibrium phase diagram was proposed for the Mg-Ce system up to 50 at% Ce.