Fig. 3.
(A) Potentiodynamic polarization curves of the Mg–1Zn–1Sn-xSr alloys in HBSS, (B) Nyquist plot, (C) |z|-logf plot and θ-logf plot of EIS spectrum of the Mg–1Zn–1Sn-xSr alloys, (D) H2 evolution, (E) changes of pH value and (F) corrosion rate of the Mg–1Zn–1Sn-xSr alloys in HBSS at 37 °C for 7 days.