利用挤压铸造制备了氧化铝短纤维增强锌合金复合材料，研究了其凝固组织与界面。结果表明，复合材料的组织致密，纤维分布均匀，基体组织细小；纤维与基体间存在明显的界面层，合金元素通过适当的化学反应可改善纤维与基体的结合；在凝固过程中，氧化铝纤维可作为锌合金共晶体非自发形核的衬底，纤维／基体界面上的硅在共晶体的共生生长过程中起了领先相作用，导致复合材料的共晶转变是由铝硅共晶转变和锌铝共品转变两者组成。 Alumina short fiber reinforced zinc alloy composites were prepared by squeeze casting, and their solidification structure and interface were studied. The results show that the composites are densely organized and the fibers are evenly distributed and the matrix is ​​fine. There is a clear interfacial layer between the fibers and the matrix. Alloying elements can improve the bond between the fibers and the matrix through proper chemical reaction. During the solidification process, Which can be used as a substrate for non-spontaneous nucleation of zinc alloy eutectics. The silicon on the fiber / matrix interface plays a leading role in the co-growth of eutectic, resulting in the eutectic transformation of the composite material being transformed by Al-Si eutectic Zinc altogether changed the composition of both.