The phase composition of Zn-Ni alloys electrodeposited under potentiodynamic and galvanostatic conditions in acetate-chloride plating solution with the ratio [Zn+2]/[Ni+2] = 1:12.8 at 50 degrees C has been investigated by the potentiodynamic stripping and XRD methods. It has been determined that two anodic peaks, which can be attributed to oxidation of the certain phases of Zn-Ni alloy emerged in potentiodynamic stripping curves (PDC) at E < 0 V and at E > 0 V. The Zn-Ni alloy phase that oxidized at E > 0 V was obtained by using cyclic voltarnmetry with the partial potentiodynamic stripping. This phase is similar to 7at.% Zn solid solution in Ni. The composition of Zn-Ni alloy phase that oxidized at E < 0 is similar to 41.0 at.% Zn and similar to 59.0 at.% Ni. The ratio of these phases in the alloys depends on the cathodic current density (i(c)). (c) 2005 Elsevier Ltd. All rights reserved.