Microstructure and Electrochemical Properties of AlFeCoNiCrTiVx High-entropy Alloys

The microstructure and electrochemical properties of equiatomic and high entropy AlFeCoNiCrTiVx (x,molar ratio,x=0.5,1,1.5,2) alloys were investigated in 0.5 mol/L H2SO4 solution and 1 mol/L NaCl solution,and compared with 304 stainless steel.The results showed that the alloy composition was changed from two-bcc phase to a single bcc phase.The polarization curves showed that the alloy system had better corrosion resistance than 304 stainless steel in 0.5 mol/L H2SO4 solution and 1 mol/L NaCl solution,and the AlFeCoNiCrTiV0.5 alloy had the best comprehensive corrosion resistance.