EFFECT OF SENSITIZATION OF TYPE 304 STAINLESS STEEL ON PITTING CORROSION
敏化对不锈钢孔蚀性能的影响

The pitting corrosion resistence of different sensitized 304 stainless steels was investigated by means of electrochemical technology. The effect of NaCl concentration, temperature and pH on pitting potential (E b) was discussed. The results indicate that sensitization leads to E b decrease. Increasing NaCl concentration and temperature or decreasing pH shifts E b to more negative values. The intergranular corrosion of stainless steel makes pitting corrosion resistence worse.