Phase Transition of Electrodeposited Fe-Zn Alloy Film by Heating

Abstract

Change in the structure of electrodeposited Fe-Zn alloy films during heating was investigated by using the methods of differential scanning calorimetry and X-ray diffractions. Following results are obtained :
(1) Exothermic reactions occurred at 150 °C, 210°C and 300°C. These reactions are supposed to be attributed to the phase transition of the electrodeposited film to δ₁, Γ, and Γ phases, respectively.
(2) Corrosion current density decreased afetr heating during 30 min, at 180°C. It can be concluded that this change after heating is concerned with the transition of electrodeposited film to equilibrium phase.