噴射成形原位反應TiC/Al-Fe-V-Si復合材料的顯微組織

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

摘要: 使用X射線衍射(XRD)、光鏡(OM)、電子掃描電鏡(SEM)、透射電鏡(TEM)等對在Al-8.5Fe-1.4V-1.7Si合金中原位反應生成TiC的噴射沉積坯件的顯微組織進行了分析和研究.結果表明,原位反應生成的TiC顆粒在噴射沉積過程中抑制了針狀相的形成,改善了合金的顯微組織,生成的TiC顆粒均勻地分布在合金基體中.

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.