Peculiarities of nanostructured state formation in heat-treatable Al–Mg alloys

The effect of long-time homogenization and aging on the formation of disperse β ′ phase particles and β phase particles has been analyzed. Alloys solidified with the cooling rate of ∼10 − 1 °C/s (Al–10%Mg and Al–10%Mg–0.1%Sc) and alloys melted by centrifugal casting with the cooling rate of ∼ 10 3 °C/s (Al–10%Mg) were chosen for comparative analysis. А significant heterogeneity of the distribution of the strengthening β ′-phase after aging is observed in Al–10%Mg alloys obtained by the ingot technology. The greatest hardening up to 100% is achieved after using the centrifugal casting due to the formation of the β ′-phase during aging.