Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH

Table 3

Impedance parameters obtained through the equivalent circuit for aluminum-based alloy doped with Mn and Co after heat treatment at 600°C immersed in 3 M KOH.

Sample	(Ω·cm^2)	(F·cm^2)		(Ω·cm^2)	(F·cm^2)		(Ω·cm^2)	(Ω·cm^2)
M1	9.0		0.8	7.2		0.8
M2	4.4		0.5	1.7		0.8
M3	6.4		0.7			0.9
M4	8.4		0.9	4.2		0.9	34.5	47.1
M5	5.8		0.8	15.3		0.9	20.3	41.4