对高纯的Al-12.5wt-％Si共晶合金中加入金属Na,用扫描电镜和电子探针进行观察分析,结果表明:在共晶成分的Al-Si合金中,随着Na含量的增加,共晶本身会以胞状和树枝状方式构成共晶团。
SEM and EMPA observations were carried out on specimens of high purity Al-12.5%Si eutectic alloy in which certain amount of Na was added. The results indicated that the Al-Si eutectie itself forms cellular and dendritic eutectic colony with the increase of Na added in the Al-Si euteetic alloy.
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