Corrosion Inhibition of Cu-Ni (90/10) Alloy in Seawater and Sulphide-Polluted Seawater Environments by 1,2,3-Benzotriazole

Table 3

Impedance parameters of Cu-Ni (90/10) alloy in seawater at different immersion periods. (Temperature: 30°C).

Immersion period (h)	𝑅ct	(CPE)dl	𝑛1	𝑅𝑓	(CPE)film	𝑛2
	(kΩ cm^2)	(𝜇F cm^−2)		(kΩ cm^2)	(𝜇F cm^−2)
1	0.722	28.41	0.64	0.002	36.44	0.60
3	1.004	14.50	0.65	0.005	34.81	0.64
6	3.168	13.30	0.66	0.007	27.34	0.64
24	4.174	12.32	0.67	0.008	15.47	0.65
48	4.720	12.20	0.67	0.010	15.12	0.66