摘要
利用挤压铸造制备了氧化铝／锌合金复合材料，研究了氧化铝／锌合金界面反应及其对复合材料凝固组织的影响．结果表明，复合材料的基体组织细小，合金元素通过适当的化学反应可改善纤维与基体的结合；在复合材料凝固过程中，氧化铝纤维可作为锌合金中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晶转变组成．
Alumina/zinc alloy composites are manufactured by squeeze casting. The interfaceinteraction of alumina/zinc alloy and its effect on the solidifying structure of the composite arestudied. The results indicate that the matrix structures in the composite are very small, and thealloy element can jmprove combination between the fiber and the matrix through the suitable chemical reaction , the fiber can serve as the sites of heterogeneous nucleation of eutectic in zincalloy during the solidification of the composite, and the silicon on the interface between thefiber and the matrix plays a leading role during the coupled growth of the eutectic so that theeutectic transformation of the composite consists of aluminiumsilicon eutectic transtormation and zinc-aluminium eutectic transformation.
出处
《矿冶》
EI
CAS
1999年第3期65-69,共5页
Mining And Metallurgy
关键词
复合材料
氧化铝
锌合金
界面反应
凝固组织
Composite Alumina Zinc alloy Interface reaction Solidifying structure
