An Electrochemical Impedance Study of AISI 321 Stainless Steel in 0.5 M H₂SO₄

Table 2

Passive element values for the equivalent circuit of Model F obtained from the fitting procedure of types.

𝐸	𝑅1	𝑌01	𝑛1	𝑅𝑃	𝑌0𝑃	𝑛2	𝑅𝐷	δ ^2/𝐷	𝑅ct	𝑌03	𝑛3
V	Ω cm^2	𝜇F cm^−2		kΩ cm^2	𝜇F cm^−2		Ω cm^2		kΩ cm^2	𝜇F cm^−2
0.0	0.42	954.44	0.78	0.76	221.25	0.95	48.80	4.44	15.379	538.03	0.89
0.2	0.50	243.53	0.68	1.31	172.42	0.91	17.99	4.41	18.68	543.89	0.91
0.4	0.52	228.71	0.71	1.51	132.95	0.86	14.49	5.01	22.97	443.53	0.99
0.6	0.59	181.42	0.95	4.93	125.46	0.90	9.27	4.13	26.85	299.03	0.99
0.8	0.39	196.66	0.70	1.78	105.14	0.85	10.52	4.96	29.72	362.83	0.99