表面状态对TC4钛合金的耐蚀性影响

刘星, 冉斗, 孟惠民, 李全德, 巩秀芳, 隆彬

Effect of Surface State on Corrosion Resistance of TC4 Ti-alloy

LIU Xing, RAN Dou, MENG Huimin, LI Quande, GONG Xiufang, LONG Bin

表2 TC4钛合金基材及喷丸处理后在3.5%NaCl溶液中的动电位极化测试拟合结果

Table 2 Fitting parameters of dynamic potential polarization curves of TC4 Ti-alloy without and with CSSP, GSP and CSP treatment in 3.5%NaCl solution

Sample Ecorr / V vs.SCE Icorr / A·cm-2 Ipass / A·cm-2 TC4 Ti-alloy -0.26 2.89×10-8 2.59×10-6 CSSP 0.02 5.04×10-8 3.57×10-6 GSP -0.13 5.37×10-8 3.93×10-6 CSP -0.08 5.56×10-8 4.19×10-6