Study of the structures of pulse plating Zn-Fe deposits

Ge, Fuyun; Xu, S.K.; Yao, Shi-Bing; Zhou, Shu

doi:10.1016/s0257-8972(96)02922-2

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…After then pulse plating has received much attention for it can yield smaller grain size and evener particles distribution than direct current (DC) methods. More and more pulse plating researches have been done on electrodepositions of Zn [4], Zn-Fe [3,5,6], Zn-Ni [7][8][9][10][11][12], Zn-Co [5,[13][14][15], ZnS [16], other ternary alloy coatings [17,18] and composite coatings [19]. Pulsed current (PC) and reverse pulsed current (RPC) are also the versatile methods for the preparation of nanostructured metals and alloys [20,21].…”

Section: Introductionmentioning

confidence: 99%

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High Anticorrosion Nano Zn-Fe Coatings by Pulse Electrodepositing

Zhu

et al. 2011

AMR

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Nano Zn-Fe coatings in a chloride electrolyte with additives by reverse pulse current were obtained and the anticorrosion was investigated. The morghology and crystal size of Zn-Fe alloy depositions were measured by scanning electron microscope and atom force microscope. Coatings with 30 nm or so crystal size was obtained with mean current density 9.0 A•dm-2, duty cycle 60%, frequency 500 Hz and time of negative to positive 30 ms ∶8 ms. It was detected by X-ray diffraction that the pulse plated coatings of Zn–Fe were mixtures of two phases, one of them being the α-phase and the other pure zinc or the α-phase with a significantly lower proportion of Fe. The pulse plated Zn-Fe coatings’ corrosion resistance was greatly improved compared with Zn-Fe coatings by direct current according to Tafel tests, saline immersion and salt spray tests. The anticorrosion of Zn-Fe coatings with 30 nm crystal size was 2~3 times than that of normal Zn-Fe alloy deposits.

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Section: Introductionmentioning

confidence: 99%

“…Pulse electroplating of Zn-Fe coatings resulted in the grain size reduction to 50 nm at J p 0.2 A cm -2 . Ge et al [6] obtained higher iron element content Zn-Fe (6 wt%-7.4 wt%) by pulse plating. The results showed that pulse current parameters affected not only the textures of the deposits but also their phase constitutions.…”

Section: Introductionmentioning

confidence: 99%