316L和HR-2不锈钢在盐酸液膜环境中的钝化与点蚀

何壮,王兴平,刘子涵,盛耀权,米梦芯,陈琳,张岩,李宇春

Passivation and Pitting of 316L and HR-2 Stainless Steel in Hydrochloric Acid Liquid Membrane Environment

Zhuang HE,Xingping WANG,Zihan LIU,Yaoquan SHENG,Mengxin MI,Lin CHEN,Yan ZHANG,Yuchun LI

表4 316L和HR-2不锈钢在0.1 mol/L HCl溶液中不同温度Tafel拟合数据

Table 4 Tafel fitting data of 316L and HR-2 stainless steel at 0.1 mol/L HCl solution of different temperatures

Sample T / ℃ Ecorr / V Em / V Eb / V Passive potential range / V Ip / A·cm-2 d / mm·a-1 316L 90 0.007 0.092 1.018 0.092~1.018 0.220 0.220 70 0.480 0.631 1.560 0.631~1.560 0.214 0.112 60 0.617 0.777 1.550 0.777~1.550 0.182 0.030 HR-2 90 0.563 0.973 1.585 0.973~1.585 0.220 0.152 70 0.719 0.989 1.743 0.989~1.743 0.196 0.102 60 0.742 0.992 1.317 0.992~1.317 0.067 0.001