Anodic
O 2
H 2
O 2
H 2
O
H 2
O
OH
−
H
+
OH
−
H
+
H 2
Deposition
of coating
film
Anodic reactions
Deposition of film
Deposition of film
2H 2
O 2
H 2
O
O 2
+ +
O 2
4H
+
2H
+ +
4e
−
2e
−
4e
−
H 2
4OH
−
+ +
Anode reactions
Cathode reactions
Cathodic reactions
Deposition
of coating
film
(+) (−) (
+) (−)
Cathodic
2H 2
O
2H 2
H 2
+
O 2
4H
+ 4e
−
2e
−
+ +
FIGURE
7.23
Electrodeposition of paints.
Corrosion of Linings and Coatings
474
CAT8247—CHAPTER 7—17/10/2006—15:04—TRGANESH—XMLM ODEL B–pp. 403–485