采用XRD、DTA、OM和TEM研究Mg-2.54Nd-0.26Zn-0.32Zr合金铸态和热处理后的相组成、相变温度、微观组织.研究表明:Mg-2.54Nd-0.26Zn-0.32Zr合金铸态组织析出相主要是分布在晶界的块状Mg_(12)Nd稀土化合物,只有少量的片状和粒状Mg_(12)Nd相分布在晶界和晶内;T6处理后Mg_(12)Nd以相互交叉的片状形式团簇状分布在基体中,形成方式为点状析出相聚集而成.
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