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研究了反应铸造工艺制备的原位TeCp／Fe复合材料的组织和性能，并探讨了复合材料的组织形成机理．结果表明：原位合成的TiC颗粒尺寸细小（4．48μm）、数目多（2169个／mm2）且在珠光作基体中分布均匀；TIC颗粒与基体的界面干净，无间隙和界面反应产物生.成这些组织特点使所制备的复合材料具有如下平均性能：硬度HRC＝42冲击韧性αk＝8．6J／cm2，抗拉强度σb＝422MPa，延伸率δ＝1．6％．分析认为：TiC颗粒是在Fe－Ti－C合金熔体的等温反应过程中形成的，而有害化合物R3C和Fe2Ti则在蒋体的凝固过程中桥出；对熔体进行Cu，Ni微合金化及孕育处理可防止有害化合物的形成，从而提高复合材料的性能．
The microstructure and properties of in-situ TeCp / Fe composites prepared by reactive casting process were investigated. The formation mechanism of the composites was also discussed. The results show that TiC particles synthesized in situ are very small (4.48μm) in size and more in number (2169 particles / mm2) and are uniformly distributed in the pearlitic matrix. The interface between the TIC particles and the matrix is clean, with no interstitial reaction and interface reaction. The characteristics of these organizations make the prepared composite material have the following average properties: hardness HRC = 42 impact toughness αk = 8.6J / cm2, tensile strength σb = 422MPa, elongation δ = 1.6%. The analysis shows that TiC particles are formed during the isothermal reaction of Fe-Ti-C alloy melt, while the harmful compounds R3C and Fe2Ti are bridged during the solidification of the Chiang body. The melt is Cu and Ni microalloyed And inoculation can prevent the formation of harmful compounds, thereby enhancing the performance of composite materials.