Electrochemical Investigation of Corrosion Behavior Heat Treated Al-6Si-0.5Mg-xCu (x = 0, 0.5, 1, 2, and 4 wt%) Alloys

Table 2

Potentiodynamic polarization test results.

Alloy code	(A/cm^2)	(mV)	(mV)	Corrosion rate (mpy)
Alloy-1	6.300	−764	−480	5.287
Alloy-2	5.640	−657	−408	4.732
Alloy-3	2.950	−697	−370	2.474
Alloy-4	20.30	−586	−353	17.050
Alloy-5	16.30	−583	−340	13.650