Abstract
The phase composition of Zn–Ni alloys electrodeposited from acetate-chloride plating solutions containing Zn+2 and Ni+2 ions at ratio of 1–12.8 at 50 °C was investigated by the potentiodynamic stripping method. Two anodic current density (ia) peaks emerged in potentiodynamic stripping curves (PDC) at E 0.0 V (vs. Ag/AgCl/KClsat), that were attributed to oxidation of certain phases of the Zn–Ni alloy. The ratio of these phases in deposited Zn–Ni alloys under potentiodynamic conditions was affected by the potential sweep rate (ν) and maximum cathodic current density (ic) The ratio of Zn and Ni in certain phases of Zn–Ni alloy was determined by the partial potentiodynamic stripping technique. Experimental data show that Zn–Ni alloy, containing 6.5 at.% Zn and 93.5 at.% Ni and dissolved in ia peak H (E > 0.0 V), provides the black coloration of the Zn–Ni alloy.
Published Version
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