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

表1 1R钢在30、60、90和120 mmol/L NH4H2PO4溶液中浸泡20 h后的表面粗糙度参数

Table 1 Surface roughness and specific surface area of the 1R steel immersed in 30, 60, 90, and 120 mmol/L NH4H2PO4 solution for 20 h

Solution Surface roughness / μm Specific surface area Ra Rq Rz 30 mmol/L 1.9 2.6 12.2 3.4 60 mmol/L 1.4 1.9 10.8 2.1 90 mmol/L 0.8 1.0 5.1 2.0 120 mmol/L 0.7 0.9 4.7 1.9