铈离子修饰SiO2膜层在模拟深海条件下的腐蚀行为研究

窦建业, 屈少鹏, 轩星雨

Service Behavior of Cerium Ion Modified SiO2 Film Prepared by Different Methods in Artificial Deep Sea Environments

DOU Jianye, QU Shaopeng, XUAN Xingyu

表3 X80钢上溶胶-凝胶膜层和电沉积膜层在不同静水压3.5%NaCl溶液中的腐蚀电化学参数

Table 3 Electrochemical parameters of the sol-gel coating and electrodeposited coating on X80 steel in 3.5%NaCl solution under different hydrostatic pressures

Samples EcorrV IcorrµA·cm-2 βaV·dec-1 βcV·dec-1 Sol-gel, 0.1 MPa -0.434 1.58 0.0929 0.210 Sol-gel, 20 MPa -0.434 6.57 0.0833 0.323 Electrodeposition, 0.1 MPa -0.513 4.27 0.1109 0.158 Electrodeposition, 20 MPa -0.504 17.48 0.0661 0.391