X80掺氢天然气管道的氢脆与腐蚀耦合作用研究

赵杰, 徐广旭, 张烘玮, 李敬法, 吕冉, 王嘉龙, 闫东雷

Coupling Effect of Hydrogen Embrittlement and Corrosion of X80 Pipeline Steel in Hydrogen-doped Natural Gas

ZHAO Jie, XU Guangxu, ZHANG Hongwei, LI Jingfa, LV Ran, WANG Jialong, YAN Donglei

表2 不同掺氢比下X80管线钢的电化学阻抗谱拟合数据值

Table 2 Fitting data values of EIS of X80 pipeline steel under different hydrogen blended ratios

Blended hydrogen ratio Rs / Ω·cm2 Ccp / S·s n ·cm-2 Rct / Ω·cm2 Cdl / S·s n ·cm-1 Rcp / Ω·cm2 RL / Ω·cm2 L / H·cm2 10% 87.5 6.13 × 10-5 910.9 7.76 × 10-5 198.1 49 6.84 × 104 20% 96.9 8.14 × 10-5 898.9 2.85 × 10-5 126.3 53.5 6.37 × 104 40% 86.3 5.23 × 10-5 886.2 3.64 × 10-5 117.2 30.5 4.31 × 104