Silane Films Modified with Yttrium Oxide Nanoparticles for Improved Corrosion Resistance of AA6061-T6

被引：2

作者：

Zhang, S. -L. ^{[1
]}

Zhang, M. -M. ^{[2
]}

Yao, Y. ^{[1
]}

Sun, F. ^{[1
]}

机构：

[1] Henan Normal Univ, Chem & Environm Sci Coll, Xinxiang 453007, Henan, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

CORROSION | 2012年 / 68卷 / 04期

关键词：

aluminum alloy; corrosion resistance; silane film; yttrium oxide nanoparticles; ALUMINUM-ALLOYS; AA; 2024-T3; PROTECTION; STEEL; INHIBITORS; CERIUM;

D O I：

10.5006/0010-9312-68-4-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work strives to evaluate the corrosion resistance of aluminum alloy (AA)6061-T6 (UNS A96061) pretreated with bis-1,2-(triethoxysiyl)ethane silane (BTSE) solution containing different contents of yttrium oxide (Y2O3) nanoparticles. The corrosion resistance of the pretreated AA6061-T6 substrates was investigated with potentiodynamic polarization curves and the neutral salt spray (NSS) test. The morphologies of the silane film were observed using scanning electron microscopy (SEM). The results indicated that the presence of small amounts of Y2O3 nanoparticles in BTSE solutions can increase the corrosion resistance of the silane films in 3.5% sodium chloride (NaCl) solution. Y2O3 nanoparticles do not change the behavior of the electrode reaction. The formed silane film acts as a physical barrier for the protection of aluminum alloy. The SEM images indicated that the surface morphologies of silane films formed were flat and compact, when the contents of the Y2O3 nanoparticles in BTSE solutions were between 10 ppm and 20 ppm.

引用

页数：6

共 17 条

[1]

[Anonymous], 2011, B11711 ASTM INT

[2] The inhibitive action of metacryloxypropylmethoxysilane (MAOS) on aluminium corrosion in NaCl solutions [J].

Beccaria, AM ;

Chiaruttini, L .

CORROSION SCIENCE, 1999, 41 (05) :885-899

[3] High protective, environmental friendly and short-time developed conversion coatings for aluminium alloys [J].

Bethencourt, M ;

Botana, FJ ;

Cano, MJ ;

Marcos, M .

APPLIED SURFACE SCIENCE, 2002, 189 (1-2) :162-173

[4] Protection against corrosion in marine environments of AA5083 Al-Mg alloy by lanthanide chlorides [J].

Bethencourt, M ;

Botana, FJ ;

Cauqui, MA ;

Marcos, M ;

Rodriguez, MA ;

RodriguezIzquierdo, JM .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 250 (1-2) :455-460

[5] XANES INVESTIGATION OF THE ROLE OF CERIUM COMPOUNDS AS CORROSION-INHIBITORS FOR ALUMINUM [J].

DAVENPORT, AJ ;

ISAACS, HS ;

KENDIG, MW .

CORROSION SCIENCE, 1991, 32 (5-6) :653-663

[6] Electrodeposition of silane films on aluminum alloys for corrosion protection [J].

Hu, Ji-Ming ;

Liu, Liang ;

Zhang, Jian-Qing ;

Cao, Chu-Nan .

PROGRESS IN ORGANIC COATINGS, 2007, 58 (04) :265-271

[7] Chemical composition and corrosion protection of silane films modified with CeO2 nanoparticles [J].

Montemor, M. F. ;

Pinto, R. ;

Ferreira, M. G. S. .

ELECTROCHIMICA ACTA, 2009, 54 (22) :5179-5189

[8] Effects of addition of corrosion inhibitors to silane films on the performance of AA2024-T3 in a 0.5M NaCl solution [J].

Palanivel, V ;

Huang, Y ;

Ooij, WJ .

PROGRESS IN ORGANIC COATINGS, 2005, 53 (02) :153-168

[9] Nanoparticle-filled silane films as chromate replacements for aluminum alloys [J].

Palanivel, V ;

Zhu, DQ ;

van Ooji, WJ .

PROGRESS IN ORGANIC COATINGS, 2003, 47 (3-4) :384-392

[10] The use of pre-treatments based on doped silane solutions for improved corrosion resistance of galvanised steel substrates [J].

Trabelsi, W ;

Triki, E ;

Dhouibi, L ;

Ferreira, MGS ;

Zheludkevich, ML ;

Montemor, MF .

SURFACE & COATINGS TECHNOLOGY, 2006, 200 (14-15) :4240-4250

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