Compressive deformation behavior of as-cast and semi-solid 5083 alloy prepared by SIMA method was examined on the Gleeble 3500 thermo-simulator

meanwhile

flow characteristics of the liquid phase was also analyzed based on the compressed macromorphology and microstructure.The results show that deformation temperature and strain rate are closely related to the thermal compressive behavior of semi-solid 5083 aluminum alloy billets.With compressive deformation in semi-solid temperature range

the whole stress in as-cast billets is obviously higher than that in SIMA prepared ones

while with compressive deformation in solid temperature

flow stress curves of the two exhibit similar and there is no remarkable advantages for the semi-solid alloy.There exist three typical deformation regions for the two alloys during compressive deformation in the semi-solid temperature range.The liquid phase in the semi-solid alloy is uniformly distributed along the grain boundary

while its distribution exhibits relatively uneven in the as-cast alloy.The density and uniformity of the semi-solid 5083 alloy are superior to those of the as-cast alloy after hot compressive deformation.