NickelMaghrebV1, Main, Exploration, bibRecord, 000290

Comparative study of protective nickel-tungsten deposit behavior obtained by continuous and pulsed currents from citrate-ammonia media

Identifieur interne : 000290 ( Main/Exploration ); précédent : 000289; suivant : 000291

Comparative study of protective nickel-tungsten deposit behavior obtained by continuous and pulsed currents from citrate-ammonia media

Auteurs : W. Sassia [France] ; L. Dhouibi [Tunisie] ; P. Bercot [France] ; M. Rezrazi [France] ; E. Triki [Tunisie]

Source :

Surface & coatings technology [ 0257-8972 ] ; 2012.

RBID : Pascal:12-0277382

Descripteurs français

Pascal (Inist)
- Etude comparative, Courant pulsé, Citrate, Ammoniac, Dépôt électrolytique, Revêtement métallique, Traitement surface, Corrosion.
Wicri :
- topic : Corrosion.

English descriptors

KwdEn :
- Ammonia, Citrates, Comparative study, Corrosion, Electrodeposition, Metal coating, Pulsed current, Surface treatments.

Abstract

A comparative study of protective Ni-W deposit behavior obtained by continuous (cc) and pulsed (pc) currents from citrate-ammonia media on copper surface was presented. Effects of electroplating process on microstructures, in terms of crystallization, proportion and grain size were investigated using SEM/EDS and XRD. The results show that Ni-W morphology obtained by (cc) and (pc) was quite different; it changed from rigorous and irregular to smooth and granulate. Corrosion mechanisms and stability in 10 h of immersion into 3% NaCl of various treated-coatings were discussed in the consideration of electrical conductivity, microhardness, porosity and inhibition efficiency.

Affiliations:

Links toward previous steps (curation, corpus...)

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Le document en format XML

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<front><div type="abstract" xml:lang="en">A comparative study of protective Ni-W deposit behavior obtained by continuous (cc) and pulsed (pc) currents from citrate-ammonia media on copper surface was presented. Effects of electroplating process on microstructures, in terms of crystallization, proportion and grain size were investigated using SEM/EDS and XRD. The results show that Ni-W morphology obtained by (cc) and (pc) was quite different; it changed from rigorous and irregular to smooth and granulate. Corrosion mechanisms and stability in 10 h of immersion into 3% NaCl of various treated-coatings were discussed in the consideration of electrical conductivity, microhardness, porosity and inhibition efficiency.</div>
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Comparative study of protective nickel-tungsten deposit behavior obtained by continuous and pulsed currents from citrate-ammonia media

Comparative study of protective nickel-tungsten deposit behavior obtained by continuous and pulsed currents from citrate-ammonia media

Source :

Descripteurs français

English descriptors

Abstract

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