Abstract By addition of a reactant with stoichiometric ingredient of Ti and B to molten Al Si alloy,a particulate reinfaced cast TiB 2/Al Si composite by in situ reaction has been achieved.

• 在铝硅合金熔体中加入Ti和B成理想配比的反应剂，原位生成颗粒增强铸造复合材料TiB2/Al?Si。