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- W2922691109 abstract "Zinc is currently used in steel coating processes to protect against corrosion. For such reasons, much research has been carried out to improve the corrosion resistance of zinc electrolytic deposits by adding organic additives. Indeed, these additions have an influence on the physical, chemical and mechanical properties of the coating such as grain size, luminosity, chemical composition, etc. The aim of this research is to study the effect of nettle plant extract (notes O1), obtained by the reflux method in water, on the improvement of the quality of zinc deposits obtained by electrodeposition on a steel substrate in a sulphate medium at pH=2. This research is an alternative in order to avoid the addition of polluting chemical additives conventionally used in this type of research. The curves obtained in the cathodic domain show that O1 decreases the kinetics of hydrogen release, a parasitic reaction which is often at the origin of defects observed on metal deposits and which leads to poor performance of the materials obtained. SEM photographs of zinc deposits obtained by chronoamperometry at E= -1.7 V SSE for 30 minutes show that O1 significantly affects the morphology of the zinc deposit and produces a finer-grained deposit (Figure 1). Figure 1. SEM photos of zinc deposits obtained on steel at E= -1.7 V SSE for 30 min (A) without and (B) with 1.5 g.L -1 O1. Keywords: corrosion, coatings, zinc, steel, electrodeposition, nettle, SEM. References [1] A. ZAABAR, Electrodeposition, par voltamperometrie et cementation, des metaux cuivre et zinc en presence d’extrait de la plante d’ortie (Urtica dioica L. ). Application de l’extrait a la corrosion, Doctorat thesis, Universite de Bejaia (2015)." @default.
- W2922691109 created "2019-04-01" @default.
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- W2922691109 date "2018-07-25" @default.
- W2922691109 modified "2023-09-23" @default.
- W2922691109 title "Elaboration of thin layers of Zinc on XC38 steel in the presence of nettle plant extract" @default.
- W2922691109 hasPublicationYear "2018" @default.
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