Relationship between Crystallographic Structure of Electrodeposited Fe-W Alloy Film and Its Thermal Equilibrium Diagram

The crystallographic structure and morphology of electrodeposited Fe-W films under different bath conditions were studied in detail by using SEM, XRD and Heat-treatment method. The crystallographic structures of the Fe-W electrodeposits were also compared with the Fe-W thermal equilibrium diagram. The results indicated that the crystallographic structure of electrodeposited Fe-W alloy film gradually changed from microcrystalline to amorphous with increasing W content. The crystallographic structure of the electrodeposited Fe-W alloy film is closely related to its thermal equilibrium diagram, but does not always agree with it.