Effects of Substrate Temperature on the Corrosion Behaviour of Nanochromium Coatings Deposited by Direct Current Magnetron Sputtering

Table 3

Fitting results of impedance spectra for the corrosion of Cr-2 coatings in 0.5 M H₂SO₄ + 2 ppm solution.

Time (h)	(Ω·cm^2)	(Ω^−1·cm^−2 S^n)		(Ω·cm^2)	(Ω^−1·cm^−2 S^−n)
1	1.501		0.962	2.606		0.936
72	1.307		0.974	2.414		0.952
168	1.174		0.979	2.903		0.951
384	1.174		0.978	2.490		0.952
768	1.162		0.976	2.662		0.954