Effect of Annealing on Electrochemical Behavior of Chromium Bronze in NaCl Solution

Chromium bronze,as a solid solution and aging strengthened alloy,is widely used due to its high strength,high conductivity and good wear resistance.The effect of annealing on the electrochemical behavior of chromium bronze in NaCl solution was investigated.The results showed that the addition of Cr and Zr could decrease the corrosion resistance of copper alloy,and the unbeneficial effect became stronger with increasing annealing temperature.Compared with unannealed simple,the effect of Cl- concentration on the corrosion behavior of annealed alloy was weakened,and the difference of corrosion resistance with varrous contents of Cr and Zr was reduced.