X80钢焊接接头在模拟天然气凝析液中的腐蚀行为

陈芳,李亚东,杨剑,唐晓,李焰

Corrosion Behavior of X80 Steel Welded Joint in Simulated Natural Gas Condensate Solutions

Fang CHEN,Yadong LI,Jian YANG,Xiao TANG,Yan LI

表5 模拟天然气凝析液中X80钢BM和WM在不同HAc浓度溶液中EIS拟合数据

Table 5 Fitting data of EIS of BM and WM in simulated natural gas condensate in different concentrations of HAc

Specimen	c(HAc) %	R_s Ω·cm²	C_dl μF·cm^-2	n	R_p Ω·cm²	R_L Ω·cm²	L H·cm^-2
BM	0	4.3	765	0.79	181	663	572
	0.10	4.0	473	0.83	172	369	481
	0.30	4.2	555	0.82	152	371	378
	0.50	3.1	525	0.84	136	321	288
WM	0	4.6	124	0.86	510	-	-
	0.10	4.4	176	0.85	488	3256	1692
	0.30	4.4	164	0.85	304	3720	2620
	0.50	4.9	646	0.79	208	725	910