Fe-Cu alloys were grown on polycrystalline titanium
substrates after determining the suitable deposition potentials. Based on the results
obtained from cyclic voltammetry curves, a potential region between –1.8 V
and –2.3 V vs. saturated calomel electrode (SCE) was selected. During
growth, the electrochemical characterizations of the films were made by
recording the current-time transients. The structure of films becomes more
brittle with the increase of the deposition potential over –2.3 V vs. SCE
due to extreme hydrogen liberation from cathode surface. The structural
analysis by the X-ray diffraction demonstrated that the films have a
typical body centered cubic of $\alpha $-Fe preferentially grown in the
(211) direction. The grain sizes, lattice parameters and interplanar
spacings were also calculated. Energy dispersive X-ray spectroscopy
measurements demonstrated that the ratio of Fe:Cu was almost the same. The
magnetic analysis by vibrating sample magnetometer indicated that the
coercivity of the films was slightly affected by the deposition potential.