Modification effect of Al-Ti-C-P on Al-Si alloy was also investigated. The microstructure of grain refiner was studied by OM,XRD,SEM and EDS.

• 通过扫描电镜(SEM)、光学显微镜(OM)、能谱分析(EDS)和X射线衍射仪(XRD)等手段,研究了Al-Ti-C-P晶粒细化剂的显微组织。