热处理工艺对超级13Cr不锈钢在饱和CO<sub>2</sub>油田地层水中腐蚀行为影响

热处理工艺对超级13Cr不锈钢在饱和CO₂油田地层水中腐蚀行为影响

潘鑫, 任泽, 连景宝, 何川, 郑平, 陈旭

Effect of Heat Treatment Process on Corrosion Behavior of Super 13Cr Stainless Steel in CO₂-Saturated Oilfield Formation Aqueous Solution

PAN Xin, REN Ze, LIAN Jingbao, HE Chuan, ZHENG Ping, CHEN Xu

表3 不同条件热处理的超级13Cr不锈钢EIS拟合结果

Table 3 EIS fitting results of super 13Cr stainless steel of various heat treatment

Heat treatment conditions	R_sΩ·cm^-2	R_fΩ·cm^-2	CPE_dlF·cm^-2	R_ctΩ·cm^-2
quenching	5.73	29.40	9.74×10^-6	6.38×10⁴
550 ℃-tempering	4.40	7.64	1.26×10^-5	3.23×10⁴
620 ℃-tempering	4.70	16.93	1.21×10^-5	5.30×10⁴
690 ℃-tempering	4.52	3.22	1.79×10^-5	2.69×10⁴
Two-stage tempering	5.34	19.04	1.14×10^-5	5.52×10⁴