Corrosion Behaviour of a Highly Alloyed Austenitic Alloy UB6 in Contaminated Phosphoric Acid

Table 3

Parameters obtained by fitting the experimental results of EIS for the alloy in contaminated 5.5 M H₃PO₄solution at +0.6 mV at different temperatures.

Temperature	𝑅𝑆 (Ohm·cm^2)	𝑅1 (Ohm·cm^2)	𝐶1 (µF·cm^−2)	𝛼1	𝑑1 (nm)	𝑅2 (Ohm·cm^2)	𝐶2 (µF·cm^−2)	𝛼2	𝑑2 (nm)	𝑑𝑇 (nm)
20°C	4.16	204	13.7	0.95	1	644	38.2	0.7	0.36	1.36
40°C	3.79	185	15.7	0.94	0.87	569	39.3	0.66	0.35	1.22
60°C	3.41	169	17.0	0.9	0.81	340	42.6	0.6	0.32	1.13
80°C	2.42	159	17.5	0.94	0.7	234	70.1	0.52	0.19	0.88