受BTA保护的白铜在模拟工业大气环境中的腐蚀行为

黄松鹏, 彭灿, 曹公望, 王振尧

Corrosion Behavior of Copper-Nickel Alloys Protected by BTA in Simulated Urban Atmosphere

HUANG Songpeng, PENG Can, CAO Gongwang, WANG Zhenyao

表1 拟合极化曲线得到的电化学参数

Table 1 Electrochemical kinetic parameters obtained from polarization curves fitted

Sample t / h Ecorr / mV icorr / (μA·cm-2) Before BTA treatment 0 -133.63 1.32 48 -104.93 3.04 144 -131.51 4.76 240 -110.57 7.91 336 -121.45 7.50 After BTA treatment 0 -71.36 8.88 × 10-2 48 -180.29 4.59 × 10-2 144 -117.18 3.89 × 10-2 240 -156.45 1.36 × 10-1 336 -171.84 2.23 × 10-1