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(a,b) SEM micrographs of the AZ31-0.5Ca alloy showing fine (Mg,Al)2Ca particles and the related energy-dispersive X-ray spectroscopy taken on the particles [7]; (c) X-ray diffraction pattern of AZ31 and AZ31-0.5Ca; (d) (Mg,Al)2Ca particle size distributions in AZ31-0.5Ca.
