Figure 2. Measured engineering stress-strain curves of the A356 alloys processed by the RS+PHT and the subsequent T6 heat treatment. (a) RS + PHT treated, (b) solid solution treated at 813 K, and (c) artificially aged at 453 K. The curves shown in (b) and (c) correspond to the samples with peak YS values (cf. Supplementary Fig. S1). In order to show the changes in the mechanical properties in different treatment states, same scales of the coordinate axes are adopted in the three plots.

Figure 2. Measured engineering stress-strain curves of the A356 alloys processed by the RS+PHT and the
subsequent T6 heat treatment. (a) RS + PHT treated, (b) solid solution treated at 813 K, and (c) artificially aged at
453 K. The curves shown in (b) and (c) correspond to the samples with peak YS values (cf. Supplementary Fig. S1).
In order to show the changes in the mechanical properties in different treatment states, same scales of the coordinate
axes are adopted in the three plots.