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

Table 2

Impedance parameters obtained through the equivalent circuit for aluminum-based alloy doped with Mn and Co as cast, immersed in 3 M KOH.

Sample	(Ω·cm^2)	(F·cm^2)		(Ω·cm^2)	(Ω·cm^2)	(F·cm^2)		(Ω·cm^2)
M1	63.8		0.7	183.5	32.2		0.6
M2	4.4		0.6		60.7		0.5
M3	18.0		0.7	16.3	5.6		0.5	39.9
M4	8.2		0.8
M5	5.9		0.8	55.4	8.4		0.5	69.7