Property Electrodes Mg Al-Mg (90 wt%) Al-Mg (75 wt%) (a) Conductivity (IACS) 38 11 7 (b) Corrosion rate (%) 0 0 0 (c)
Decomposition voltage (V) 3.65 3.50 3.40 Property Electrodes Al-Mg (50 wt%) Al-Mg (25 wt%) (a) Conductivity (IACS) 4 8 (b) Corrosion rate (%) 0 0 (c)
Decomposition voltage (V) 3.15 2.85 Property Electrodes Al-Mg (10 wt%) Al (a) Conductivity (IACS) 14 62 (b) Corrosion rate (%) 45 99 (c)
Decomposition voltage (V) 2.55 2.35
In the first stage the electric potential is 2.6 V (less than CaO
decomposition voltage); during this stage current intensity constantly decayed (fig.
In steady state, two regions have been defined for the microleg: the linear zone below the
decomposition voltage (sum of metal overpotential used as the electrodes and standard equilibrium potential or standard electrode potential) and nonlinear exponential zone above
decomposition voltage (Figure 12).