Microstructure of Electrodeposited Co-Fe Alloy Films

Abstract

The microstructure of Co-Fe alloy films electrodeposited on a polycrystalline copper substrate were studied by using XRD and observed by SEM and TEM. Film phase structure depended on the alloy composition alone bcc-α, fcc-γ and hcp-ε phases spread compare to the quilibrium phase at room temperature Film grain size depended on the alloy composition independent of potential and current density The grain size of the mixed phase of a and γ and ε at 18at%Fe was the finest of all films The grain size of the mixed phase of γ and ε increased with the Co content, while the grain size of the α phase increased and with Fe content