Abstract
Zn-Fe alloy electrodeposition was carried out in the presence of condensation product 2-{[(1E)-(3,4-dimethoxyphenyl)methylidene]amino}-3-hydroxypropanoic acid formed between veratraldehyde and serine in acid sulphate bath. Hull cell was used for optimizing the operating parameters and bath constituents. During deposition, the potential was shifted towards cathodic direction in the presence of addition agents and brightener. The polarization studies show that deposition taking place in basic bath and optimum bath was 1.08 and 1.15 V, respectively. Current efficiency and throwing power were reached around 85% and 26%, respectively. The SEM images of bright deposit indicated its fine-grained nature and appreciable reduction in the grain size. XRD studies have showed that the grain size of the deposit generated from optimum bath was 16 nm. UV-visible spectroscopic studies confirm the formation of complex between metal ion and brightener.
Highlights
Zinc and zinc alloys are widely used to electroplate steel sheet to provide corrosion resistance, mainly in the automobile industries
In the present study efforts have been made to develop the brightener for the electrodeposition of Zn-Fe alloy deposit over wide current density range from sulphate bath
Deposits obtained from Hull cell experiments with the basic bath solution (Table 1) were coarse dull deposit between the current density range of 0.5 and 3.5 Adm−2 at 1A cell current
Summary
Zinc and zinc alloys are widely used to electroplate steel sheet to provide corrosion resistance, mainly in the automobile industries. Several methods and materials, such as different organic paints and zinc alloys, are being examined for improved corrosion resistance and better economical means of protection of steel sheets for longer times under severe atmospheric conditions [1,2,3]. Alloying with Zn confers sufficient corrosion resistance to steel that nowadays is a common procedure for most industries, the automotive industry. They have numerous important industrial applications in the chemical and galvanic process of automobile and aerospace industries. In the present study efforts have been made to develop the brightener for the electrodeposition of Zn-Fe alloy deposit over wide current density range from sulphate bath. Basic studies such as polarization studies, current efficiency, and throwing power of the bath are reported
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
