Abstract
Potentiodynamic polarization,electrochemical noise and SEM were used to study the corrosion behavior of L2 aluminum anodic film in 1 mol/L NaCl solutions.The results showed that anodic oxidization of aluminum increases its corrosion resistance greatly.However metastable pits were also observed when the film was thin or was exposed to the solutions for a long time.These pits with a diameter less than 10μm often occurred around the metallic inclusions in film.
Publication Date
2003-05-28
Online Available Date
2003-05-28
Revised Date
2003-05-28
Received Date
2003-05-28
Recommended Citation
Jing-mao Zhao, Zhi-jun Bai, Yu Zuo.
Metastable Pitting of Aluminum Anodic Film in Neutral Sodium Chloride Solution[J]. Journal of Electrochemistry,
2003
,
9(2): 184-188.
DOI: 10.61558/2993-074X.1503
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol9/iss2/10
References
[1] PrideST,ScullyJR,HudsonJL.Metastablepittingofaluminumandcriteriaforthetransitiontostablepitgrowth[J].J.Electrochem.Soc.,1994,141(11):3028.
[2] ScullyJR,FrankelGS,NewmanRC(eds).PrceedingsoftheSymposiumonCriticalFactorsinLocalizedCorrosion,V92_9[M].Pennington,NJ:TheElectrochem.Soc.,1992,144.
[3] Szklarska_smialowskaZ.Pittingcorrosionofaluminum[J].CorrosionScience,1999,41(9):1743.
[4] MisaoHashimoto,ShumpeiMiyajima,TomomiMurata.Anexperimentstudyofpotentialfluctuationduringpassivefilmbreakdownandrepaironiron[J].Corrosion,1992,33(6):905.
[5] HisamatsuY,YoshiiT,MatsumuraY.LocalizedCorrosion(ed.R.W.Staehle)[M].Houston:NACE,1974,135.