Cr耐蚀钢筋在模拟高碱性混凝土孔隙液中的钝化行为
王慕亮, 孙玉朋, 陈磊, 魏洁, 董俊华

Passive Behavior of Corrosion-Resistant Cr-Containing Steel Bars in Simulated High-Alkaline Concrete Pore Solution
WANG Muliang, SUN Yupeng, CHEN Lei, WEI Jie, DONG Junhua
表2 20MnSi、3Cr和9Cr钢浸泡不同时间后等效电路的拟合参数
Table 2 Equivalent circuit parameters of 20MnSi, 3Cr, and 9Cr steels after different immersion time
Steel

Time

h

Rs

Ω·cm2

Qc-Y0

10-3 Ω-1·cm2·S-n

nc

Rc

Ω·cm2

Qa-Y0

10-3 Ω-1·cm2·S-n

na

Ra

Ω·cm2

χ2
20MnSi0.53.660.260.9419940.1800.84285301.71 × 10-3
122.140.210.9020830.2000.84395002.63 × 10-3
242.450.120.9624670.0660.89907203.04 × 10-3
722.180.220.9226540.0660.932082009.20 × 10-4
1682.300.190.9342460.0650.946236008.13 × 10-4
3Cr0.52.330.160.9235630.0850.93313606.99 × 10-4
122.220.160.9239580.0820.961635005.50 × 10-4
242.220.200.8542120.0590.953917001.28 × 10-3
722.190.170.9253140.0660.936195008.77 × 10-4
1682.230.160.9468380.0610.969406004.46 × 10-4
9Cr0.52.410.151.0031040.0720.90483609.64 × 10-4
122.350.160.8948190.0550.936427007.73 × 10-4
241.810.180.9359660.0470.948179004.06 × 10-4
722.340.311.0070370.0470.9411490009.31 × 10-4
1682.230.210.9381540.0480.9514580003.23 × 10-4