固液反应合成铝基自生复合材料

In Situ Aluminium Matrix Composites by Solid/Melt Reaction Synthesis

利用Ａｌ－Ｍｇ合金液与Ｆｅ３Ｏ４粉末的反应，获得了细小Ａｌ－Ｆｅ相和Ａｌ２Ｏ３分布于铝基体上的复合材料；在离心铸造过程中，利用Ａｌ－Ｍｇ合金液与Ｆｅ２Ｏ３的反应，获得了外层含有初生Ａｌ－Ｆｅ相、内层不含初生Ａｌ－Ｆｅ相的复合材料。分析了复合材料的组织特征和物相组成。

Composites with fine Al Fe phase and Al 2O 3 particle on aluminium matrix have been obtained by means of the reaction between Al Mg alloy melt and Fe 3O 4 powder, composites with primary Al Fe phase in outer layer and no primary Al Fe in inner layer have been achieved through the reaction between Al Mg alloy melt and Fe 2O 3 powder during centrifugal casting. The structure characteristic and phase component of the composites are analyzed.