3%Cu低碳马氏体不锈钢0Cr13Ni4Mo的显微组织及耐腐蚀性能
杨彬彬, 宋元元, 郝龙, 姜海昌, 戎利建

Microstructure and Corrosion Resistance of Low-Carbon Martensitic Stainless Steel 0Cr13Ni4Mo with 3%Cu Addition
YANG Binbin, SONG Yuanyuan, HAO Long, JIANG Haichang, RONG Lijian
表3 不同热处理工艺下0Cu钢和3Cu钢在3.5%NaCl溶液中EIS的等效电路拟合参数
Table 3 Equivalent circuit fitting parameters of 0Cu and 3Cu steels after different heat treatments in 3.5%NaCl solution
SteelHeat treatment

Rs

Ω·cm2

Rf

kΩ·cm2

Qf

10-5 Ω-1·cm-2·s-1

nf

Rct

Ω·cm2

Cdl

10-5 Ω-1·cm-2·s-1

0CuSolution treated4.00838.895.9120.8852320.667.02
0Cu400oC tempered4.12424.335.8380.8811194.671.53
0Cu500oC tempered4.76613.746.4020.8659211.357.93
3CuSolution treated3.88011.565.2930.8712322.099.60
3Cu400oC tempered4.12926.165.8660.8792331.672.57
3Cu500oC tempered3.95448.355.8340.8643447.274.91