Effects of Self-assembled Film Microstructure on Corrosion Resistance of Aluminum Alloy Surface

Li Jiaojiao, Liu Yanhong, Li Jiaping, Liu Yanyi, Shang Wei, Wen Yuqing

China Surface Engineering ›› 2020, Vol. 33 ›› Issue (5) : 30-39.

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China Surface Engineering ›› 2020, Vol. 33 ›› Issue (5) : 30-39. DOI: 10.11933/j.issn.1007-9289.20200716004

Effects of Self-assembled Film Microstructure on Corrosion Resistance of Aluminum Alloy Surface

  • Li Jiaojiao, Liu Yanhong, Li Jiaping, Liu Yanyi, Shang Wei, Wen Yuqing
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Abstract

In order to study the influence of the microstructure of self-assembled films with different functional groups on the corrosion resistance of aluminum alloy. Lauric acid, bis(γ-triethoxysilylpropyl) tetrasulfide (BTESPT) and ammonium sebacate self-assembled film were prepared on the surface of Al by self-assembled film technology. Scanning electron microscope, X-ray energy spectrometer, contact angle analyzer, and infrared spectrometer were used to characterize the films, the electrochemical and corrosion protection performance of the films were discussed respectively. The results shows that the three self-assembled films all have been successfully prepared, moreover, the BTESPT film structure was densest among the films. The EIS and Tafel plot shows that the impedance values of the three layers have reached 3. 3×107 , 1. 1×1015 , 6. 8×107 Ω·cm2 , the corrosion cur- rent density reached 4. 5×10-7 , 5. 6×10-8 , 9. 6×10-8 A/ cm2 . Corrosion mechanism of the film is discussed by the fitting circuit diagram. Salt spray test results shows that the corrosion point appeared on the 16th day of the BTESPT film. A result is obtained that the BTESPT film has the best corrosion resistance due to its dense film structure.

Key words

aluminum alloy; lauric acid; BTESPT; ammonium sebacate; self-assembled film; corrosion resistance

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Li Jiaojiao, Liu Yanhong, Li Jiaping, Liu Yanyi, Shang Wei, Wen Yuqing. Effects of Self-assembled Film Microstructure on Corrosion Resistance of Aluminum Alloy Surface[J]. China Surface Engineering, 2020, 33(5): 30-39 https://doi.org/10.11933/j.issn.1007-9289.20200716004

References

[1] ABBASI S,NOURI M,ROUHAGHDAM A S.A novel com-bined method for fabrication of stable corrosion resistance su-perhydrophobic surface on Al alloy [J].Corrosion Science,2019,159:108144.
[2] LU J Q,WEI G Y,YU Y D,et al.Aluminum alloy AA2024 anodized from the mixed acid system with enhanced mechani-cal properties [J].Surfaces and Interfaces,2018,13:46-50.
[3] YU M,DONG H,SHI H B,et al.Effects of graphene oxide-filled sol-gel sealing on the corrosion resistance and paint ad-hesion of anodized aluminum [J].Applied Surface Science,2019,479:105-113.
[4] KOSLOWSKI N,SANCTIS S,HOFFMANN R C,et al.Synthesis,dielectric properties and application in a thin film transistor device of amorphous aluminum oxide AlxOy using a molecular based precursor route [J].Journal of Materials Chemistry C,2019,7(4):1048-1056.
[5] CHOI E Y,KIM J H,KIM B J,et al.Development of mois-ture-proof polydimethylsiloxane/aluminum oxide film and sta-bility improvement of perovskite solar cells using the film [J].RSC Advances,2019,9(21):11737-11744.
[6] XIA D H,PAN C C,QIN Z B,et al.Covalent surface mod-ification of LY12 aluminum alloy surface by self-assembly do-decyl phosphate film towards corrosion protection [J].Pro-gress in Organic Coatings,2020,143:105638.
[7] ZHANG X,ZHAO J,MO J L,et al.Fabrication of superhy-drophobic aluminum surface by droplet etching and chemical modification [J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2019,567:205-212.
[8] HAMDY A S,BUTT D P.Novel anti-corrosion nano-sized vanadia-based thin films prepared by sol-gel method for alu-minum alloys [J].Journal of Materials Processing Technolo-gy,2007,181(1-3):76-80.
[9] ALI I,QUAZI M M,ZALNEZHAD E,et al.Hard anodizing of aerospace AA7075-T6 aluminum alloy for improving sur-face properties [J].Transactions of the Indian Institute of Metals,2019,72(10):2773-2781.
[10] ZHANG X J,LUO X,OU W X.Effect of Er on the charac-teristics of an oxide coating prepared by micro-arc oxidation on a 7075 aluminum alloy [J].International Journal of Elec-trochemical Science,2020,15:3445-3452.
[11] TSAI S Y,LIN C H,JIAN Y J,et al.The fabrication and characteristics of electroless nickel and immersion Au-polytet-rafluoroethylene composite coating on aluminum alloy 5052 as bipolar plate [J].Surface and Coatings Technology,2017,313:151-157.
[12] ZANG J,YU S,ZHU G,et al.Fabrication of superhydro-phobic surface on aluminum alloy 6061 by a facile and effec-tive anodic oxidation method [J].Surface and Coatings Technology,2019,380:125078.
[13] 周芝凯,宋丹,王国威,等.铝合金阳极氧化的研究进展 [J].热加工工艺,2020,49(18):8-11.ZHOU Z K,SONG D,WANG G W,et al.Research pro-gress of aluminum alloy anodic oxidation [J].Hot working technology,2020,49(18):8-11(in Chinese).
[14] MONDAL J,MARQUES A,AARIK L,et al.Development of a thin ceramic-graphene nanolaminate coating for corrosion protection of stainless steel [J].Corrosion Science,2016,105:161-169.
[15] SHANG W,CHEN B Z,SHI X C,et al.Electrochemical corrosion behavior of composite MAO/sol-gel coatings on magnesium alloy AZ91D using combined micro-arc oxidation and sol-gel technique [J].Journal of Alloys and Com-pounds,2009,474(1-2):541-545.
[16] WINKLER D A,BREEDON M,WHITE P,et al.Using high throughput experimental data and in silico models to dis-cover alternatives to toxic chromate corrosion inhibitors [J].Corrosion Science,2016,106:229-235.
[17] SHANG W,HE C B,WEN Y Q,et al.Performance evalua-tion of triethanolamine as corrosion inhibitor for magnesium alloy in 3.5 wt% NaCl solution [J].RSC Advances,2016,6(115):113967-113980.
[18] MA M M.WEN Y Q,SHANG W,et al.Preparation and corrosion resistance of micro-arc oxidation/self-assembly com-posite film on 6061 aluminum alloy [J].International Jour-nal of Electrochemical Science,2019,14:11731-11743.
[19] WANG D H,NI Y H,HUO Q,et al.Self-assembled mono-layer and multilayer thin films on aluminum 2024-T3 sub-strates and their corrosion resistance study [J].Thin Solid Films,2005,471(1-2):177-185.
[20] MOFIDABADI A H J,BAHLAKEH G,RAMEZANZADEH B.Fabrication of a novel hydrophobic anti-corrosion film based on Eu2O3/stearic acid on steel surface;Experimental and detailed computer modeling studies [J].Journal of the Taiwan Institute of Chemical Engineers,2020,114:228-240.
[21] ANSARI K R,QURAISHI M A,SINGH A.Isatin deriva-tives as a non-toxic corrosion inhibitor for mild steel in 20% H2 SO4 [J].Corrosion Science,2015,95:62-70.
[22] LI Y J,GAO W,CI L J,et al.Catalytic performance of Pt nanoparticles on reduced graphene oxide for methanol electro-oxidation [J].Carbon,2010,48(4):1124-1130.
[23] WEN Y Q,KONG D,SHANG W,et al.Corrosion resist-ance performance of the self-assembled reduction of gra-phene/silane composite films [J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2019,562:247-254.
[24] KHASKHOUSSI A,CALABRESE L,PROVERBIO E.Su-perhydrophobic self-assembled silane monolayers on hierar-chical 6082 aluminum alloy for anti-corrosion applications [J].Applied Sciences,2020,10(8):2656.
[25] SUN R,ZHAO J,LI Z,et al.Preparation of mechanically durable superhydrophobic aluminum surface by sandblasting and chemical modification [J].Progress in Organic Coat-ings,2019,133:77-84.
[26] ZHAO X,YUAN S,JIN Z Q,et al.Fabrication of composite coatings with core-shell nanofibers and their mechanical prop-erties,anticorrosive performance,and mechanism in seawater [J].Progress in Organic Coatings,2020,149:105893.
[27] ZHU G Y,CUI X K,ZHANG Y,et al.Poly(vinyl bu-tyral)/Graphene oxide/poly(methylhydrosiloxane)nano-composite coating for improved aluminum alloy anticorrosion [J].Polymer,2019,172:415-422.
[28] CHEN M A,OU Y C,YU C Y,et al.Corrosion perform-ance of epoxy/BTESPT/MAO coating on AZ31 alloy [J].Surface Engineering,2015,32(1):38-46.
[29] 陈明安,谢玄,戚海英,等.2A12-T6 铝合金表面双-(γ-三乙氧基硅丙基)四硫化物薄膜的特性 [J].物理化学学报,2006,22(8):1025-1029.CHEN M A,XIE X,QI H Y,et al.Characteristics of bis_ triethoxysilylpropyl_ tetrasulfide film on aluminum alloy sur-face [J].Acta Phys.Chim.Sin.,2006,22(8):1025-1029(in Chinese).
[30] ZHU H Z,YUE L F,ZHUANG C,et al.Fabrication and characterization of self-assembled graphene oxide/silane coat-ings for corrosion resistance [J].Surface and Coatings Tech-nology,2016,304:76-84.
[31] SUN J,WANG C,SONG J L,et al.Multi-functional appli-cation of oil-infused slippery Al surface:from anti-icing to corrosion resistance [J].Journal of Materials Science,2018,53(23):16099-16109.
[32] SUN W,WANG L D,YANG Z Q,et al.Fabrication of polydimethylsiloxane-derived superhydrophobic surface on a-luminium via chemical vapour deposition technique for corro-sion protection [J].Corrosion Science,2017,128:176-185.
[33] LU Z,WANG P,ZHANG D.Super-hydrophobic film fabri-cated on aluminium surface as a barrier to atmospheric corro-sion in a marine environment [J].Corrosion Science,2015,91:287-296.
[34] SHANG W,WU F,WEN Y Q,et al.Corrosion resistance and mechanism of graphene oxide composite coatings on mag-nesium alloy [J].Industrial & Engineering Chemistry Re-search,2018,58(3):1200-1211.

Funding

Supported by National Natural Science Foundation of China ( 51665010 ) and Natural Science Foundation of Guangxi (2020GXNSFAA159011)
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