Development of Nano-structured Zn-Ni Multilayers and their Corrosion Behaviors

被引：13

作者：

Yogesha, S. ^{[1
]}

Bhat, Ramesh S. ^{[1
]}

Venkatakrishna, K. ^{[1
]}

Pavithra, G. P. ^{[1
]}

Ullal, Yathish ^{[1
]}

Hegde, A. Chitharanjan ^{[1
]}

机构：

[1] Natl Inst Technol Karnataka, Dept Chem, Electchem Lab, Srinivasnagar 575025, Karnataka, India

来源：

SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY | 2011年 / 41卷 / 01期

关键词：

CMMA Zn-Ni coatings; corrosion resistance; dielectric spectroscopy; SEM; COMPOSITIONALLY MODULATED ALLOYS; COATINGS; ELECTRODEPOSITION; MAGNETORESISTANCE; RESISTANCE; BATH;

D O I：

10.1080/15533174.2010.522881

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Composition modulated multilayer alloy (CMMA) coatings of Zn-Ni was developed using single bath technique (SBT). CMMA coatings were developed galvanostatically using square current pulses. The cyclic cathode current densities (CCCDs) and number of layers were optimized for highest corrosion resistance. Experimental results showed that CMMA coating, developed at 2.0/5.0 A/dm2, having 300 layers is 29 times higher corrosion resistant than monolithic alloy of same thickness. Tafel and impedance data revealed its good protection ability. The improved corrosion behavior exhibited by multilayers was explained using dielectric spectroscopy. The formation of multilayer and corrosion mechanism was analyzed using scanning electron microscopy (SEM).

引用

页码：65 / 71

页数：7

共 23 条

[1]

[Anonymous], 1999, ELECTROCHEMICAL SUPE

[2] Development of a bath for electrodeposition of zinc-cobalt compositionally modulated alloy multilayered coatings [J].

Bahrololoom, ME ;

Gabe, DR ;

Wilcox, GD .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (03) :C144-C151

[3]

BARREL G, 2004, J PHYS C SOLID STATE, V51

[4]

Brenner A., 1963, ELECTRODEPOSITION AL, V2

[5] Multilayer coatings for improved performance [J].

Bull, SJ ;

Jones, AM .

SURFACE & COATINGS TECHNOLOGY, 1996, 78 (1-3) :173-184

[6] Compositionally modulated zinc alloy coatings for corrosion protection [J].

Chawa, G ;

Wilcox, GD ;

Gabe, DR .

TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, 1998, 76 :117-120

[7]

Craig B.D., 1991, FUNDAMENTAL ASPECTS

[8]

Dobrzanski L.A., 2007, Arch. Mater. Sci. Eng., V28, P12

[9]

Duan YG, 2002, J WUHAN UNIV TECHNOL, V17, P54

[10] Electrodeposition of zinc-nickel compositionally modulated multilayer coatings and their corrosion behaviours [J].

Fei, JY ;

Wilcox, GD .

SURFACE & COATINGS TECHNOLOGY, 2006, 200 (11) :3533-3539

← 1 2 3 →