Electrochemical characterization of plasma polymer coatings in corrosion protection of aluminum alloys

2005 ◽  
Vol 23 (4) ◽  
pp. 991-997 ◽  
Author(s):  
Yenfong Chan ◽  
Qingsong Yu
Keyword(s):  
Aluminum Alloys ◽  
Corrosion Protection ◽  
Polymer Coatings ◽  
Electrochemical Characterization ◽  
Plasma Polymer

scholarly journals Preparation and characterization of beryllium doped organic plasma polymer coatings

1996 ◽  
Vol 14 (3) ◽  
pp. 1019-1024 ◽  
Author(s):  
R. Brusasco ◽  
S. Letts ◽  
P. Miller ◽  
M. Saculla ◽  
R. Cook
Keyword(s):  
Polymer Coatings ◽  
Plasma Polymer

Anti-Corrosion Studies of Novel Conductive Polymer Coatings on Aluminum Alloys

1995 ◽  
Vol 413 ◽  
Author(s):  
R. J. Racicot ◽  
R. L. Clark ◽  
H-B Liu ◽  
S. C. Yang ◽  
M. N. Alias ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Corrosion Protection ◽  
Polymer Coating ◽  
Electrochemical Impedance ◽  
Conductive Polymer ◽  
Corrosion Current ◽  
Polymer Coatings ◽  
Anodized Aluminum ◽  
Cyclic Polarization ◽  
Order Of Magnitude

ABSTRACTWe report the corrosion protection properties of a novel conductive polymer coating on aluminum alloys. The conductive polymer coating is a double strand molecular complex of polyaniline and a polyelectrolyte. The double strand polyaniline offers advantages in stability and processability over other forms of conductive polymers. The coated aluminum alloys (AA7075- T6) were evaluated for corrosion protection in an aggressive salt environment of.5N NaCl solutions using cyclic polarization and electrochemical impedance spectroscopy. Corrosion current densities were calculated for uncoated alloy samples and alloys coated with the conductive and non-conductive derivative of the double strand polymer. The conductive form of the double strand polyaniline coating shows a two order of magnitude lowering of the corrosion current over the uncoated samples and a one order magnitude lowering over the non-conductive form of the polymer coated samples. The shape of the cyclic polarization data closely resembles results of sulfuric acid anodized aluminum. This data indicates that the conductive state of the polymer is required for improved corrosion protection and an anodized type protection is occurring.

Electrochemical characterization of automotive aluminum alloys regarding their corrosion fatigue behavior

2018 ◽  
Vol 49 (3) ◽  
pp. 264-272 ◽  
Author(s):  
T. Engler ◽  
G. Andersohn ◽  
M. Oechsner ◽  
F. Duarte de Araújo ◽  
H. Kaufmann ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Corrosion Fatigue ◽  
Fatigue Behavior ◽  
Electrochemical Characterization
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