Abstract: In order to study the influence of carbides produced by in situ synthesis of various chemical reactions or direct addition on wear resistance of carbide reinforced composite coatings,TiC reinforced Fe-based composite coatings were prepared on T10 steel substrate by laser alloying.Then their microstructures,phases,microhardness and wear properties were investigated and analyzed.Results showed that compact and non-defective alloy layers were obtained,consisting of γ-CrFe7C0.5 and submicron MC(M=Ti,Cr,W) particles.Austenite transformed into martensite in wear testing because of processing hardening.Wear weight loss of direct addition was 2 times to 3 times larger than that of in situ synthesis.The content of carbides produced through combination reaction between Ti and C was higher than that produced through reduction reaction between TiO2 and C,which led to a better tribological performance.The results can serve as a guide in selecting the best method of the ceramic phase introduction when preparing TiC reinforced Fe-based composite coatings.