EFFECT OF GLYCINE AND SODIUM ACETATE ON MORPHOLOGICAL AND STRUCTURAL CHARACTERIZATION OF ZnMn COATING ALLOY ELECTRODEPOSITED FROM ACIDIC CHLORIDE BATH
View/ Open
Date
2019-10-12Author
Benfedda, Baya
Allam, Lamia
Boudinar, Salem
Medjani, Hassina
Benbrahim, Nassima
Kadri, Abdelaziz
Chopart, Jean Paul
Metadata
Show full item recordAbstract
In this study, ZnMn alloy coatings were potentiostatically deposited on steel substrate from a chloride acidic bath.
The effects of glycine, sodium acetate and applied potential on deposit kinetics, morphological and structural properties of
ZnMn coatings were studied. The voltammperometric analysis indicated that the simultaneous codeposition of two elements
Mn and Zn was possible under our experimental conditions. However, the deposition kinetics depends strongly of the
additive type. The morphological and structural properties of ZnMn deposited with sodium glycine and acetate are
completely different, indicating that electrodeposition process changes according to the additive type. The best
microstructural and crystalline properties were obtained at low deposition potential in the presence of acetate.