TiC particle reinforced surface coating composites were prepared with grey cast iron as matrix and Ti-C-Fe powder system as surface pre-formed coating by vacuum EPC combined with SHS method.Effects of Fe content in Ti-C-Fe system on microstructure and properties of surface coating were investigated.The results show that the surface of Fe based coating is mainly composed of TiC phase and Fe phase.The in-situ TiC coating on the surface of substrate with nearly spherical shape has an uniform distribution and a desirable combination with substrate.The size of TiC particles is decreased with the increase of Fe content in the coating

while the hardness and wear resistance of the coating is decreased firstly and then increased

where the highest hardness can reach 59.8HRC.