高温高压CO2 环境中超级13Cr不锈钢点蚀有限元模拟

凌东, 何坤, 余靓, 董立谨, 张华礼, 李玉飞, 王勤英, 张智

Finite Element Simulation of Pitting Corrosion of Super 13Cr Stainless Steel in High-temperature and High-pressured CO2 Containing Artificial Formation Waters

LING Dong, HE Kun, YU Liang, DONG Lijin, ZHANG Huali, LI Yufei, WANG Qinying, ZHANG Zhi

表6 本体溶液边界处不同压力下初始条件

Table 6 Initial conditions of bulk solution boundary under different pressures

Species concentration mol·L-1 0.1 MPa 1 MPa 2.8 MPa CO2 concentration 7.70 × 10-3 7.59 × 10-2 2.06 × 10-1 H2CO3 concentration 1.99 × 10-5 1.96 × 10-4 5.33 × 10-4 HCO3- concentration 4.46 × 10-5 1.49 × 10-4 4.20 × 10-4 CO32- concentration 2.07 × 10-9 2.35 × 10-9 4.91 × 10-9 pH 3.74 3.27 3.14