Abstract
The nano-TiO_2 thin films have been deposited on the 316L stainless steel by sol-gel and the dip- coating methods. Hydrothermal post-treatment leads to crack-free coatings. Meanwhile, the surface structure and properties are optimized. Surface morphology, structure and properties are characterized by XRD, and SEM technologies. The results have shown that the surface of coatings is porous, uniform and orderly, the particle diameters are in the range of 15~18nm and the pores are about 4~8nm and TiO_2 is anatase. The results of electrochemical measurements show that in the NaCl solution with pH ≥ 2 and concentration below 1mol/L, the nano-TiO_2 coatings with thinkness 375~464nm have most excellent anticorrosion properties. Compareing with bare 316L stainless steel, the corrosion current for coating electrodes in 0.5 mol/L NaCl solution has cut down 2 magnitude and the corrosion resistance R_(p) has also decreased nearly 2 magnitude.
Keywords
Nano-TiO_2 thin films, 316Lstainless steel, Corrosion protection
Publication Date
2005-02-28
Online Available Date
2005-02-28
Revised Date
2005-02-28
Received Date
2005-02-28
Recommended Citation
Guang-xia SHEN, Yi-cong CHEN, Chang-jian LIN.
Corrosion Resistance for TiO_2 Thin Films Coated 316L Stainless Steel in the NaCl Solution[J]. Journal of Electrochemistry,
2005
,
11(1): 20-26.
DOI: 10.61558/2993-074X.1608
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol11/iss1/5
References
[1] GurappaI.Developmentofappropriatethicknessceram iccoatingson316Lstainlesssteelforbiomedicalappli cation[J].SurfaceandCoatingsTechnology,2002,161:70~78.
[2] TorricelliP,FiniM,BorsariV, etal.Biomaterialsinorthopedicsurgery:Effectsofanickel reducedstainlesssteeloninvitroproliferationandactivationofhumanos teoblasts[J].Inter.Artif.Org.,2003,26(10):952~957.
[3] BlackwoodDJ.Biomaterials: pastsuccessesandfutureproblems[J].Corr.Rev.,2003,21(2~3):97~124.
[4] MiguelM,SamuelO,PredestinacionG, etal.Mechan icalandinvitrotestingofaerosol geldepositedtitaniacoatingsforbiocompatibleapplication[J].Biomateri als,2002,23:349~356.
[5] GaertnerWF,HoppeEE,OmariMA, etal.Zirconia aluminananolaminateforperforatedpittingcorrosionpro tectionofstainlesssteel[J].J.Vac.SCI.Techno.,2004,22(2):272~280.
[6] ParkH,KimKY,ChoiW.Photochemicalapproachformetalcorrosionpreventionusingasemiconductorphotoanode[J].J.Phys.Chem.,2002,106:4775~4781.
[7] SubasriR,ShinoharaT.InvestigationsontheSnO2TiO2 compositephotoelectrodesforcorrosionprotection[J].Electrochem.Commun.,2003,5:897~902.
[8] LiuZY,PanK,WangMJ, etal.InfluenceofthemixedratioonthephotocurrentoftheTiO2/SnO2 com positephotoelectrodessensitizedbymercurochrome[J].J.Photochem.Photobio,A:Chem.,2003,157:39~46.
[9] ShenGX(沈广霞),ChenYC(陈艺聪),LinCJ(林昌健).Formationandcharacterizationofwater repellentnanoTiO2coatingandstudyingitsanticorrosionproperty[J].Electrochemistry(inChinese),2004,10(1):65~67.
[10] MasalakiJ,GluszekJ,ZabrzeskiJ, etal.Improve mentincorrosionresistanceofthe316LstainlesssteelbymeansofAl2O3 coatingsbythesol gelmethod[J].ThinSolidFilm,1999,349:186~190.
[11] PouilleauJ,DevilliersD,GroultH, etal.Surfacestudyofatitanium basedceramicelectrodematerialbyX rayphotoelectronspectroscopy[J].J.Mater.Sci.,1997,32:5645~5651.
[12] YuJG,ZhaoXJ,ZhaoQN, etal.XPSstudyonTiO2photocatalyticthinfilmpreparedbythesol gelmethod[J].Chin.J.Mater.Res.,2000,12(2):203~209.
[13] WagnerC,MuilenbergG.HandBookofX rayPhotoe lectronSpectroscopy[M].Minnesota:PerkinElmerCorporation,1979.38,68.
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