On the vacancy-controlled dealloying of rapidly solidified Mg–Ag alloys

The dealloying of rapidly solidified Mg–Ag alloys with 50–65 at% Mg was performed in HCl solution. The precursor alloys are composed of a single MgAg phase with different vacancy content which exhibits dominant influence on the dealloying process. A vacancy-controlled dealloying mechanism is proposed based on a layer-by-layer model.