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3 316L和HR-2不锈钢在0.5 mol/L HCl溶液不同温度的Tafel拟合数据

Table 3 Tafel fitting data of 316L and HR-2 stainless steel at 0.5 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 0.383 0.571 1.430 0.571~1.430 0.220 0.066 70 0.514 0.722 1.441 0.722~1.441 0.241 0.030 60 0.584 0.606 1.470 0.606~1.470 0.282 0.001 HR-2 90 0.448 0.568 1.483 0.568~1.483 -5.916 0.485 70 0.266 0.506 1.160 0.506~1.160 -0.056 0.141 60 0.318 0.677 1.221 0.677~1.221 0.001 0.035