Influence of additives on electrodeposition of bright Zn-Ni alloy on mild steel from acid sulphate bath |
| |
Authors: | S Shivakumara U Manohar Y Arthoba Naik T V Venkatesha |
| |
Affiliation: | (1) Department of Chemistry, School of Chemical Sciences, Kuvempu University, Shankaraghatta, 577 451, India |
| |
Abstract: | The influence of a condensation product (CP) of veratraldehyde (VRTD) and p-amino benzoic acid (PABA) on Zn-Ni alloy electrodeposited onto mild steel was studied in acidic sulphate solutions. Ethylenediaminetetraaceticacid
(EDTA) and cetyltrimethylammoniumbromide (CTAB) were used as complexing and wetting agents, respectively. The effect of bath
constituents, pH, current density and temperature on nature of deposit were studied through Hull cell experiments. The bath
constituents and operating parameters were optimized. Deposit properties and corrosion resistance were discussed. Throwing
power, current efficiency and polarization studies were carried out. SEM photomicrographs of the deposit obtained from optimum
bath revealed fine-grained deposit of the alloy in the presence of condensation product and hence modified the morphology
of zinc-nickel alloy deposit. IR spectrum of the scrapped deposit showed inclusion of addition agent. |
| |
Keywords: | Additives cathode current efficiency Hull cell studies throwing power zinc-nickel alloys |
本文献已被 SpringerLink 等数据库收录! |
|