Table 3: Examples of hardness for modified A380 aluminium alloys.

ProcessStarting alloyModified alloysFeedstock production methodHeat treatmentHardness (HB)

A380 + 12 wt% SiT6121.7 ± 0.6
Thixoforming (Birol) [31]A380A380 + 15 wt% SiLow superheat castingT6130.3 ± 0.6
A380 + 20 wt% SiT6130.7 ± 1.2