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1 0.1 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 1 Fitting parameters of EIS of Cr/GLC laminated coating immersed in 3.5%NaCl solution for different time at 0.1 MPa

Time / h Rs / Ω·cm2 Rf / Ω·cm2 nf Qf / F·cm-2 Rdl / Ω·cm2 ndl Qdl / F·cm-2 0.5 14.17 5.32 × 105 0.93 4.36 × 10-6 4.59 × 106 0.92 9.28 × 10-7 4 13.97 5.52 × 105 0.94 4.46 × 10-6 4.86 × 106 0.91 9.38 × 10-7 8 13.63 7.37 × 105 0.94 4.03 × 10-6 7.67 × 106 0.92 9.54 × 10-7 12 14.15 9.55 × 105 0.94 4.08 × 10-6 1.05 × 107 0.89 8.52 × 10-7 24 14.73 1.18 × 106 0.94 4.04 × 10-6 1.09 × 107 0.90 6.71 × 10-7 36 14.8 1.06 × 106 0.95 4.27 × 10-6 6.51 × 106 0.88 7.09 × 10-7 48 12.56 8.64 × 105 0.95 4.16 × 10-6 8.66 × 106 0.86 6.73 × 10-7 72 11.68 8.72 × 105 0.95 4.25 × 10-6 9.13 × 106 0.88 3.21 × 10-7 120 10.49 7.99 × 105 0.94 4.29 × 10-6 7.96 × 106 0.78 6.42 × 10-7 156 11.11 6.19 × 105 0.92 4.55 × 10-6 6.37 × 106 0.82 1.09 × 10-6 228 13.31 5.46 × 105 0.92 5.12 × 10-6 4.83 × 106 0.81 1.19 × 10-6 276 12.72 3.41 × 105 0.92 5.60 × 10-6 1.22 × 106 0.78 1.33 × 10-6 348 10.92 5.51 × 105 0.93 4.95 × 10-6 5.83 × 106 0.84 6.98 × 10-7 480 13.58 2.61 × 105 0.92 5.60 × 10-6 1.08 × 106 0.78 1.10 × 10-6 576 12.2 5.37 × 105 0.92 5.35 × 10-6 2.47 × 106 0.73 1.04 × 10-6 612 12.4 1.71 × 105 0.92 5.75 × 10-6 1.01 × 106 0.80 5.56 × 10-7 648 13.31 1.38 × 105 0.92 5.75 × 10-6 3.93 × 105 0.73 1.09 × 10-6 720 12.52 1.14 × 105 0.91 5.82 × 10-6 3.60 × 105 0.82 1.09 × 10-6