铜合金在不同pH值3.5%NaCl溶液中的浸泡腐蚀性能研究
|
|
靳振廷, 宋亓宁, 刘琪, 彭春兰, 许楠, 陆其清, 包晔峰, 赵立娟, 赵建华
|
Long-term Corrosion Behavior of Three Cu-alloys in 3.5%NaCl Solutions with Different pH Values
|
|
JIN Zhenting, SONG Qining, LIU Qi, PENG Chunlan, XU Nan, LU Qiqing, BAO Yefeng, ZHAO Lijuan, ZHAO Jianhua
|
|
表2 3种铜合金在不同溶液中初期及经浸泡720 h后的极化曲线拟合结果
|
Table 2 Fitting results of the polarization curves for the three copper alloys in different solutions
|
|
| Immersion time / h | pH value | MAB | | NAB | | MB |
|---|
| Ecorr / mV | Icorr / A·cm-2 | | Ecorr / mV | Icorr / A·cm-2 | | Ecorr / mV | Icorr / A·cm-2 |
|---|
| 0 | 2 | -558.8 | 1.49 × 10-5 | | -333.4 | 1.29 × 10-5 | | -462.5 | 2.35 × 10-5 | | 4 | -407.4 | 2.66 × 10-6 | | -291.9 | 3.89 × 10-6 | | -401.2 | 4.09 × 10-6 | | 6.8 | -426.2 | 1.58 × 10-6 | | -274.1 | 6.74 × 10-6 | | -416.2 | 1.97 × 10-6 | | 10 | -382.1 | 3.69 × 10-6 | | -262.3 | 7.22 × 10-6 | | -411.4 | 1.78 × 10-6 | | 12 | -380.9 | 1.11 × 10-5 | | -333.8 | 1.39 × 10-5 | | -214.2 | 4.61 × 10-7 | | 720 | 2 | -332.3 | 2.26 × 10-6 | | -283.8 | 2.45 × 10-6 | | -328.5 | 4.96 × 10-6 | | 4 | -623.8 | 4.58 × 10-6 | | -495.3 | 7.98 × 10-7 | | -420.9 | 1.92 × 10-6 | | 6.8 | -603.5 | 6.34 × 10-6 | | -265.2 | 2.35 × 10-7 | | -428.7 | 9.35 × 10-7 | | 10 | -523.4 | 1.89 × 10-6 | | -428.0 | 1.73 × 10-7 | | -431.2 | 2.38 × 10-7 | | 12 | -506.6 | 1.46 × 10-6 | | -577.4 | 3.43 × 10-8 | | -493.2 | 8.19 × 10-8 |
|
|
|