% H
2
SO
4
R
p
(Kohms)
R
s
(Kohms)
C
dl
(µF)
Z
(Kohms)
L
(nm)
2
14.71
.2
3.36
. 26
41.4
37.13
24.15
26.93
.56
.63
4
.11
. 12
62.18
16.1
.375
6
.14
. 11
53. 9
18.83
.44
8
1
.11
. 885
. 3
. 63
59.13
5 .4
16.91
19.84
.395
.463
Tabel 2:
The Electrochemical Parameters and the Oxide Film thickness of Al-Mg alloy in the annealed Condition in Different H
2
SO
4
Concentrations.