Abu-Sharkh, Basel

Abulkibash, Abdullah

Amr, Esam

Khaled, Mazen

Manda, Abdullah

Yilbas, Bekir S.

King Fahd University of Petroleum and Minerals

Corrosion properties of 316L stainless steel coated with polyelectrolyte multilayers of 
varying anionic acidity.       
 
Khaled, M.; Abu-Sharkh, B.; Amr, E.; Yilbas, B. S.; Manda, A.; Abulkibash, A.     
 
Corrosion Engineering, Science and Technology  (2007),  42(4),  356-362. 
 
 
Abstract 
 
Polyelectrolytes have been proposed as promising systems for the potection of stainless steels 
and for biomedical and drug release applications.  Multilayer nanofilms with varying anion acidity 
were deposited on AISI316L stainless steel.  The cationic polyelectrolyte was polyallylamine 
hydrochloride (PAH) whereas the anionic polyelectrolytes with increasing acidity were polyacrylic 
acid (PAA), polystyrene sulfonate-co-maleic acid and polystyrene sulfonate (PSS).  
Potentiodynamic polarisation showed an increase in corrosion potential Ecorr upon coating with 
multilayer nanofilms and a corresponding decrease in corrosion current.  Transient currents were 
obsd. upon application of PSS due to its high acidic strength although it showed better pit 
recovery characteristics as shown in cyclic polarisation expts.  Const. potential expts. at 700 mV 
v. Ag/AgCl for 12 h showed a suppressed current by 50% for the PAH/PSS coated steel 
compared to the uncoated specimen.  The SEM images showed the existence of agglomerates, 
uncovered areas and corrosion products underneath channels on the coating. 


Corrosion properties of 316L stainless steel coated with polyelectrolyte multilayers of varying anionic acidity

https://eprints.kfupm.edu.sa/id/eprint/9236/1/Corrosion_properties_of_316L_stainless_steel_coated_with_polyelectrolyte_multilayers_of_varying_anionic_acidity.pdf

Corrosion properties of 316L stainless steel coated with polyelectrolyte multilayers of varying anionic acidity

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King Fahd University of Petroleum and Minerals