Zn-2.0Al-1.5Mg镀层在模拟海洋大气中的腐蚀行为
顾天真, 刘雨薇, 彭灿, 张鹏, 王振尧, 汪川, 马成, 曹宏玮

Corrosion Behavior of Zn-2.0Al-1.5Mg Coatings in Simulated Marine Atmosphere
GU Tianzhen, LIU Yuwei, PENG Can, ZHANG Peng, WANG Zhenyao, WANG Chuan, MA Cheng, CAO Hongwei
表1 EIS参数拟合结果
Table 1 Impedance parameters of Zn-2.0Al-1.5Mg coating after being fitted

Time

h

Rs

Ω·cm2

Qr

Rr

Ω·cm2

Qdl

Rct

Ω·cm2

Chi-squared

Rp (= Rr + Rct)

Ω·cm2

yr

Ω-1·cm-2·Snr

nr

ydl

Ω-1·cm-2·Sndl

ndl
04.33 × 1011.30 × 10-56.56 × 10-17.20 × 1036.26 × 10-59.71 × 10-16.44 × 1039.29 × 10-31.36 × 104
1685.05 × 1011.48 × 10-56.81 × 10-18.26 × 1022.05 × 10-35.23 × 10-18.94 × 1025.87 × 10-31.72 × 103
3368.53 × 10-42.02 × 10-54.65 × 10-12.31 × 1026.74 × 10-79.60 × 10-12.87 × 1042.39 × 10-22.89 × 104
5042.51 × 1011.07 × 10-56.95 × 10-12.84 × 1031.19 × 10-46.36 × 10-15.52 × 1037.11 × 10-38.36 × 103
6724.21 × 10-33.03 × 10-54.58 × 10-17.89 × 1022.09 × 10-71.00 × 1006.33 × 1036.47 × 10-37.12 × 103
8403.07 × 1011.77 × 10-55.50 × 10-15.52 × 1034.13 × 10-48.78 × 10-14.59 × 1034.34 × 10-21.01 × 104
18483.14 × 10-231.51 × 10-38.38 × 10-24.70 × 10-194.63 × 10-77.34 × 10-15.95 × 1027.36 × 10-45.95 × 102