Contribution/ OriginalityThis study is one of very few studies which have investigated the possibility of manufacturing the Al-Zn-MgCu-Ni intermetallic compounds by mechanical alloying mechanisms with 12 wt. % and 16 wt. % of Ni, as well as the roles of compounds of Ni in the generating of superior the microstructural and mechanical properties of the sintered Al-Zn-Mg-Cu alloys after applying the artificial aging.