含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2 不同热处理工艺下0Cu钢和3Cu钢在3.5%NaCl溶液中的动电位极化曲线特征值

Table 2 Electrochemical parameters of potentiodynamic polarization curves of 0Cu and 3Cu steels after different heat treatments in 3.5%NaCl solution

Steel Heat treatment Ecorr / VSCE icorr / (nA·cm-2) Eb / VSCE 0Cu Solution treated -0.173 62.1 -0.019 0Cu 400oC tempered -0.161 66.6 0.069 0Cu 500oC tempered -0.181 65.7 0.097 3Cu Solution treated -0.162 64.0 0.080 3Cu 400oC tempered -0.144 57.5 0.051 3Cu 500oC tempered -0.147 42.3 0.109