Fig. 5: Potential-pH diagrams for the Al-2.69 Zn-2.87Mg-0.95Cu alloy (at. %) in 0.1 M KCl at 25 °C and 1 atm.
From: How solute atoms control aqueous corrosion of Al-alloys
a Potential-pH diagram showing equilibrium phase regimes of oxides, aqueous solution (Aqs.), and alloy matrix (FCC). b–d Potential-pH diagrams showing the equilibrium dissolution characteristics of matrix phase: b Decrease of Al matrix content (moles) as a function of potential and pH. c, d Equilibrium compositions of Zn and Cu of dealloyed solid matrix. Reversible potentials for H evolution are highlighted as gray dashed lines.
