为了在大气条件下利用 Fe- Ti- C熔体中 Ti C的合成反应制备原位 (in situ) Ti CP/Fe复合材料 ,研究了三种覆盖剂对熔体中 Ti元素氧化烧损率的影响 ,并分析了所得复合材料的组织和性能。结果表明 :采用所开发的混合盐型覆盖剂能在大气条件下制备出原位 Ti CP/Fe复合材料 ,且原位合成的 Ti C颗粒尺寸细小、分布均匀 ,从而使制备的复合材料特别是经淬火处理后的复合材料具有较高的力学性能。 In order to prepare in-situ TiCP / Fe composites by synthesis reaction of TiC in Fe-Ti-C melt under atmospheric conditions, the effect of three coating agents on the oxidation loss of Ti in melt Influence, and analysis of the resulting composite structure and properties. The results show that in-situ TiCP / Fe composites can be prepared by using the mixed salt type covering agent developed in situ and TiC particles synthesized in-situ are small in size and uniform in distribution, so that the prepared composite material, especially After quenching the composite has high mechanical properties.