Abstract: Series of Ni60 and Ni 60+WC and Ni60+WC+Nb alloy were deposited on 4Cr13 steel substrates by means of argon arc cladding. The microstructure and microhardness as well as wear resistance of them were compared. The results showed that, with the increased of the contents of WC, the surface properties of the steel such as hardness and wear resistance were improved evidently, but the effect of Nb on the hardness and wear resistance was negligible.