Effects of Nb surface alloying and Nb-C duplex treatment alloying on corrosion behavior of TiAl in particular medium by constant potential of the three electrochemical corrosion properties, respectively, compared with the experimental base after alloying of corrosion resistance. Experimental results show that the corrosion resistance of the niobizing alloyed layer and the plasma carburized layer are increased in 3.5% NaCl,5.8% HCl,in 8.8% H2SO4 solution.
