300M超高强度钢在模拟海洋环境中的腐蚀行为研究

李晗, 刘元海, 赵连红, 崔中雨

Corrosion Behavior of 300M Ultra High Strength Steel in Simulated Marine Environment

LI Han, LIU Yuanhai, ZHAO Lianhong, CUI Zhongyu

表1 电化学阻抗谱拟合的电化学参数

Table 1 Fitted electrochemical parameters for EIS of 300M ultra high strength steel

pH Rs / Ω·cm2 CPEdl / Ω-1·cm-2·s-n n Rct / Ω·cm2 L / H·cm2 3.0 4.33 5.35×10-4 0.85 48.4 2.60×10-3 4.5 6.36 1.35×10-3 0.65 217.9 --- 6.0 6.03 1.74×10-3 0.65 670.9 --- 8.2 6.95 1.33×10-3 0.61 730.8 ---