喷射成形原位反应TiC/Al-Fe-V-Si复合材料的显微组织

Microstructure Characteristic of In-situ TiC/Al-Fe-V-Si Composites Prepared by Spray Forming

摘要: 使用X射线衍射(XRD)、光镜(OM)、电子扫描电镜(SEM)、透射电镜(TEM)等对在Al-8.5Fe-1.4V-1.7Si合金中原位反应生成TiC的喷射沉积坯件的显微组织进行了分析和研究.结果表明,原位反应生成的TiC颗粒在喷射沉积过程中抑制了针状相的形成,改善了合金的显微组织,生成的TiC颗粒均匀地分布在合金基体中.

Abstract: The effect of TiC particles formed by in-situ reactions on the microstructure of spray-formed Al-8.5Fe-l.4V-l.7Si alloys was studied by means of XRD, OM, SEM and TEM. The results show that needle-shaped AlFeSi is suppressed by TiC and TiC particles distributed homogeneously in the alloy matrix.