敏化处理对00Cr21NiMn5Mo2N节镍型双相不锈钢堆焊层耐腐蚀性能的影响

包晔峰, 武竹雨, 陈哲, 郭林坡, 王子睿, 曹冲, 宋亓宁

Effect of Sensitization Treatment on Electrochemical Corrosion and Pitting Corrosion of 00Cr21NiMn5Mo2N Stainless Steel

BAO Yefeng, WU Zhuyu, CHEN Zhe, GUO Linpo, WANG Zirui, CAO Chong, SONG Qining

表1 电化学阻抗谱拟合数据

Table 1 Fitting parameters of EIS

Samples Rs / Ω·cm2 Cf / F·cm-2·S n-1 Cf-n Rf / Ω·cm2 Cdl / F·cm-2·Sn-1 Cdl-n Rct / Ω·cm2 Rp / Ω·cm2 1170 ℃ 1 h 11.15 4.19×10-5 0.86 3101.80 9.78×10-5 0.52 30886.00 33987.80 800 ℃ 0.5 h 8.51 1.04×10-4 0.76 4012.10 7.16×10-5 0.66 12137.00 16149.10 800 ℃ 1 h 7.66 1.09×10-4 0.84 1763.20 3.44×10-4 0.53 1602.70 3365.90 800 ℃ 2 h 8.22 5.02×10-4 0.66 240.71 1.06×10-4 0.92 2339.60 2580.31 800 ℃ 4 h 6.68 3.23×10-5 0.86 162910 1.15×10-5 0.99 72235.00 235145.00