2Cr-1Ni-1.2Mo-0.2V钢在NH4H2PO4溶液中的电化学腐蚀行为研究

王通, 孟惠民, 葛鹏飞, 李全德, 巩秀芳, 倪荣, 姜英, 龚显龙, 戴君, 隆彬

Electrochemical Corrosion Behavior of 2Cr-1Ni-1.2Mo-0.2V Steel in NH4H2PO4 Solution

WANG Tong, MENG Huimin, GE Pengfei, LI Quande, GONG Xiufang, NI Rong, JIANG Ying, GONG Xianlong, DAI Jun, LONG Bin

图2 1R钢在不同浓度NH4H2PO4溶液中浸泡20 h的表面腐蚀形貌

Fig.2 Corrosion morphologies before pickling (a1-f1) and corrosion morphologies after pickling (a2-f2) of the 1R steel immersed in 0 mmol/L (a1, a2), 1 mmol/L (b1, b2), 30 mmol/L (c1, c2), 60 mmol/L (d1, d2), 90 mmol/L (e1, e2),120 mmol/L (f1, f2) NH4H2PO4 solution for 20 h