Structures of the electrodeposited Fe-Zn alloys from sulphate solutions were investigated by transmission electron microscope, X-ray diffraction and Mossbauer spectroscopy.
(1) The deposits containing iron in the range of 0.9-17 wt% had hexagonal structures corresponding to the iron-supersaturated eta (η)-phase.
(2) The deposits containing iron in the range of 18.5-40 wt% had b.c.c. structures similar to the gamma (Γ)-phase, but were different from Γ-phase in the Mossbauer spectra.
(3) The deposits containing iron more than 50 wt% had b.c.c. structures corresponding to the zinc-supersaturated alpha (α)-phase.
