中文摘要：

作为更精制或修饰词，包含高集中黄磷的主人合金广泛地在准备最容易溶解或高级低共熔体的 Al-Si alloys.To 学习被使用 Al-13Si 合金的最容易溶解的团结和微观结构上的黄磷增加的效果，调查借助于热分析和 micro/macro-structure observation.Results 被承担了显示在近最容易溶解的 Al-Si 合金的黄磷的增加支持成核最容易溶解但是让很少精炼影响

英文摘要：

As the refiner or modifier, the master alloys containing high concentration phosphor are widely used in preparing eutectic or hypereutectic Al-Si alloys. To study the effect of phosphor addition on the eutectic solidification and microstructure of the Al-13%Si alloy, an investigation has been undertaken by means of thermal analysis and micro/macro-structure observation. Results indicate that addition of phosphor in near eutectic Al-Si alloy promotes the nucleation of eutectic but has little refinement impact on primary Si particles as expected. Conversely, both primary Si particles and eutectic Si flakes become slightly coarser in P-rich alloys. The coarsening of eutectic Si flakes ties closely to the increased eutectic growth temperature with phosphor addition. The eutectic solidification of the alloy proceeds from the near mold zone towards the center, and it is also found that a few independent nucleation regions emerge in liquid at the solidification front due to the addition of phosphor.