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Ô­ÎÄÊÇÕâÑù  Calcium addition caused decreasing of the ¦Â-Mg17Al12 phase because aluminum atoms were consumed by the formation of (Mg, Al)2Ca phase along grain boundaries.

P6 : It is mentioned that Al was ¡°consumed¡±by the formation of (Mg, Al)2Ca phase.
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