S31655奥氏体不锈钢在湿法磷酸中的腐蚀行为

张建斌, 田欢, 欧阳明辉, 郝汀

Corrosion Behavior of Austenitic Stainless Steel S31655 in a Simulated Wet Process Phosphoric Acid Solution

ZHANG Jianbin, TIAN Huan, OUYANG Minghui, HAO Ting

表1 S31655在不同温度在湿法磷酸中的极化参数

Table 1 Polarization parameters of S31655 in wet process phosphoric acid at different temperatures

Steel T / oC Ecorr / V Icorr / μA·cm2 Ip / μA·cm2 Eb / V S31603 25 -0.323 51.632 54.934 0.729 S31655 25 -0.184 0.699 1.509 1.069 40 -0.159 1.077 1.712 1.047 60 -0.153 2.986 2.199 1.023 80 -0.178 5.504 3.258 1.014