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5 本体溶液边界处不同温度下初始条件

Table 5 Initial conditions of bulk solution boundary under different temperatures

Species concentration mol·L-1 60oC 95oC 150oC CO2 concentration 3.14 × 10-1 2.06 × 10-1 9.95 × 10-3 H2CO3 concentration 8.10 × 10-4 5.33 × 10-4 2.57 × 10-5 HCO3- concentration 4.20 × 10-4 4.20 × 10-4 5.77 × 10-5 CO32- concentration 3.51 × 10-9 4.91 × 10-9 2.49 × 10-9 pH 3.02 3.14 3.88