"A METHOD FOR IMPROVEMENT IN CORROSION RESISTANCE OF ELECTRODEPOSITED NI-ZN ALLOY COATINGS"
Corrosive resistant improved nickel-zinc alloy (Ni-Zn) coatings were produced by electrodeposition method at constant current density of 15 mA cm-2 at room temperature with the saccharin as an additive agent. These films were characterized by various methods such as X-ray diffraction (XRD), Scanning...
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Zusammenfassung: | Corrosive resistant improved nickel-zinc alloy (Ni-Zn) coatings were produced by electrodeposition method at constant current density of 15 mA cm-2 at room temperature with the saccharin as an additive agent. These films were characterized by various methods such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Absorption Spectrophotometer (AAS) and Electrochemical Impedance Study (EIS). The XRD study confirmed the formation of nickel-zinc (Ni-Zn) alloy with plane orientation along (101) plane with composition confirmed from Atomic Absorption Spectrophotometer (AAS) of Ni:Zn between 72:28 to 75:25 at.%. The SEM revealed that the substrate surface covered with nanograins resulting in compact morphology. The EIS study indicated the improvement in the corrosion resistance of nickel-cobalt (Ni-Zn) from 640 to 874 Ω cm2. |
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