Effects of pre-deformation and heat treatment conditions in the SIMA process on properties of an Al-Zn-Mg-Cu alloy modified by Al-8B grain refiner

► The effects of Al-B on the aluminum alloy produced by SIMA process were studied. ► Al-8B is an effective in reducing the grain and introducing fine and uniform microstructure. ► During partial remelting, with increasing of the predeformation, the average grain size decreased.