海洋大气环境Cu/Ni协同作用对低合金钢耐蚀性影响

张天翼,柳伟,范玥铭,李世民,董宝军,BANTHUKUL Wongpat,CHOWWANONTHAPUNYA Thee

Effect of Synergistic Action of Cu/Ni on Corrosion Resistance of Low Alloy Steel in a Simulated Tropical Marine Atmosphere

Tianyi ZHANG,Wei LIU,Yueming FAN,Shimin LI,Baojun DONG,Wongpat BANTHUKUL,Thee CHOWWANONTHAPUNYA

表3 喷淋实验240 h后带锈试样EIS拟合值

Table 3 Fitting values of various electrochemical parameters based on EIS of three steel samples after spray test for 240 h

Steel Rs / Ω·cm2 Qdl / Ω-1·cm-2·S-n n1 Rr / Ω·cm2 Q2 / Ω-1·cm-2·S-n n2 Rt / Ω·cm2 0.7Cu-0.7Ni 62.1 2.38×10-4 0.62 25.26 1.38×10-3 0.66 434.5 0.4Cu-0.4Ni 58.6 4.43×10-4 0.64 24.76 5.43×10-3 0.74 367.2 0.3Cu-0.3Ni 43.2 5.72×10-4 0.72 20.84 2.72×10-4 0.78 239.8