340
H. Karakurkchi et al.
background electrolyte (1 M Na 2 SO 4 ) at presence of potassium diphosphate (Figs. 2
and 3), as well as essential magnification of passivation current, is caused by alloy
elements and intermetallic compounds involvement in anodic reactions.
Fig. 2 Anodic polarization
dependences of aluminum,
alloys D16 and AMn in a
solution 1 M Na 2 SO 4 ,
0.05 M K 4 P 2 O 7 . The
potential scanning rate
0.002 V/s
Fig. 3 Anodic polarization
dependences of D16 alloy in
1 M Na 2 SO 4 (1) and under
addition 0.05 M (2) and 1 M
(3) K 4 P 2 O 7 . The potential
scanning rate 0.002 V/s
H. Karakurkchi et al.
background electrolyte (1 M Na 2 SO 4 ) at presence of potassium diphosphate (Figs. 2
and 3), as well as essential magnification of passivation current, is caused by alloy
elements and intermetallic compounds involvement in anodic reactions.
Fig. 2 Anodic polarization
dependences of aluminum,
alloys D16 and AMn in a
solution 1 M Na 2 SO 4 ,
0.05 M K 4 P 2 O 7 . The
potential scanning rate
0.002 V/s
Fig. 3 Anodic polarization
dependences of D16 alloy in
1 M Na 2 SO 4 (1) and under
addition 0.05 M (2) and 1 M
(3) K 4 P 2 O 7 . The potential
scanning rate 0.002 V/s