粒径和温度对20号钢冲刷腐蚀协同作用的影响

任莹, 赵会军, 周昊, 张建伟, 刘雯, 杨足膺, 王磊

Effect of Sand Size and Temperature on Synergistic Effect of Erosion-corrosion for 20 Steel in Simulated Oilfield Produced Fluid with Sand

REN Ying, ZHAO Huijun, ZHOU Hao, ZHANG Jianwei, LIU Wen, YANG Zuying, WANG Lei

表2 不同粒径下20号钢的电化学阻抗谱拟合数据

Table 2 Fitting parameters of EIS of 20 steel under the conditions of different sand sizes

Sand size / μm Rs / Ω·cm2 Rp1 / Ω·cm2 CPE1-Y0 / Ω·cm2·s-1 n Rp2 / Ω·cm2 CPE2-Y0 / Ω·cm2·s-1 n 40~70 2.05 6.276 1.82×10-5 0.7043 106.8 0.01089 0.7348 70~120 2.571 4.953 4.3×10-6 0.8307 103.7 0.01882 0.6949 120~200 2.006 3.962 1.757×10-5 0.7279 75.67 0.0158 0.7399 200~300 2.278 4.888 4.063×10-6 0.8365 80.43 0.01752 0.7215