The dynamics of the cathodic process of plating of a zinc - chromium a
lloy by a pulsed current are studied. The composition and morphology o
f the coatings are determined. The role of complex-formation in produc
tion of them is shown. It is established that zinc-chromium coatings p
ossess twice the corrosion resistance of zinc coatings (GOST 9.305-84)
.