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2 316L和HR-2不锈钢在1 mol/L HCl溶液不同温度的Tafel拟合数据

Table 2 Tafel fitting data of 316L and HR-2 stainless steel at 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 0.162 0.238 2.163 0.383~2.163 0.226 0.049 70 0.409 0.695 1.282 0.695~1.282 0.207 0.038 60 0.468 0.738 1.494 0.738~1.494 -0.354 0.008 HR-2 90 0.448 0.568 1.483 0.568~1.483 -5.916 0.485 70 0.586 0.766 1.556 0.766~1.556 -0.822 0.024 60 0.720 0.870 1.708 0.870~1.708 -0.162 0.008