不同离子对TC4钛合金电化学腐蚀行为的协同作用机制

赵平平, 宋影伟, 董凯辉, 韩恩厚

Synergistic Effect Mechanism of Different Ions on the Electrochemical Corrosion Behavior of TC4 Titanium Alloy

ZHAO Pingping, SONG Yingwei, DONG Kaihui, HAN En-Hou

表1 TC4钛合金在含不同浓度H+的3.5%NaCl中极化曲线的拟合结果

Table 1 Fitting results of polarization curves of TC4 alloy in 3.5%NaCl solutions with different cH

cH Ecorr icorr bc ipp mmol·L-1 mV μA·cm-2 mV·decade-1 μA·cm-2 0 -502 0.06 -223 4.48 25 -469 1.62 -143 4.50 50 -469 3.14 -159 4.51 100 -494 4.39 -204 4.51