静水压力对Cr/GLC叠层涂层腐蚀行为的影响

马宏宇, 刘叡, 崔宇, 柯培玲, 刘莉, 王福会

Effect of Hydrostatic Pressure on Corrosion Behavior of Cr/GLC Laminated Coating

MA Hongyu, LIU Rui, CUI Yu, KE Peiling, LIU Li, WANG Fuhui

表2 15 MPa压力下Cr/GLC叠层涂层在3.5%NaCl溶液中浸泡不同时间的EIS拟合结果

Table 2 Fitting parameters of EIS of Cr/GLC laminated coating immersed in 3.5%NaCl solution for different time at 15 MPa

Time / h Rs / Ω·cm2 Rf / Ω·cm2 nf Qf / F·cm-2 Rdl / Ω·cm2 ndl Qdl / F·cm-2 2 9.48 5.29 × 104 0.93 2.04×10-5 1.63 × 105 0.83 8.29 × 10-6 6 9.40 5.21 × 104 0.92 2.20×10-5 1.59 × 105 0.77 8.09 × 10-6 8 10.49 5.35 × 104 0.93 1.32×10-5 1.81 × 105 0.78 3.84 × 10-6 10 9.41 5.28 × 104 0.92 2.18×10-5 1.62 × 105 0.81 1.28 × 10-5 24 8.50 4.54 × 104 0.90 1.72×10-5 9.01 × 104 0.75 2.81 × 10-5 30 9.42 5.00 × 104 0.92 2.25×10-5 1.46 × 105 0.81 2.58 × 10-5 48 9.34 4.07 × 104 0.90 2.44×10-5 5.48 × 104 0.78 8.09 × 10-6 96 9.27 3.94 × 104 0.90 2.81×10-5 4.71 × 104 0.79 3.36 × 10-5 120 9.23 4.02 × 104 0.89 2.95×10-5 5.42 × 104 0.84 4.93 × 10-5 132 9.07 8.85 × 103 0.83 6.88×10-5 6.65 × 104 0.93 1.49 × 10-4 168 8.97 6.93 × 102 0.78 1.65×10-4 8.47 × 103 0.72 3.08 × 10-4 240 8.98 6.11 × 102 0.76 1.99×10-4 7.68 × 103 0.73 2.93 × 10-4 360 9.19 5.00 × 102 0.77 2.02×10-4 5.58 × 103 0.72 3.15 × 10-4