铈离子修饰SiO<sub>2</sub>膜层在模拟深海条件下的腐蚀行为研究

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2 X80钢表面溶胶-凝胶膜层和电沉积膜层在不同静水压3.5%NaCl溶液中的电化学阻抗拟合结果

Table 2 Fitting results of electrochemical impedance spectroscopies of the sol-gel coating and electrodeposited coating on X80 steel in 3.5%NaCl solution under different hydrostatic pressures

Sample	R_s Ω·cm²	CPE₂		R₂ Ω·cm²	CPE₁		R₁ Ω·cm²	CPE₃		R_t Ω·cm²
Sample	R_s Ω·cm²	Y₂ / mS sⁿ·cm^-2	n₂	R₂ Ω·cm²	Y₁ / mS sⁿ·cm^-2	n₁	R₁ Ω·cm²	Y₃ / mS sⁿ·cm^-2	n₃	R_t Ω·cm²
Sol-gel, 0.1 MPa	9.36	5.301	0.782	10.45	14.47	0.608	12.67	0.003	0.696	1189.27
Sol-gel, 20 MPa	7.54	20.732	0.713	13.06	78.572	0.677	19.85	0.356	0.852	823.32
Electrodeposition, 0.1 MPa	8.91	0.049	0.893	16.23	0.296	0.814	20.99	0.194	0.785	954.41
Electrodeposition, 20 MPa	8.82	2.784	0.662	15.49	2.514	0.813	13.71	15.775	0.771	447.52