Computational design of thermally stable and precipitation-hardened Al-Co-Cr-Fe-Ni-Ti high entropy alloys

•Computational design of a multi-dimensional Al-Co-Cr-Fe-Ni-Ti alloy space with γ + γ’ phase field at 800 °C.•Novel high entropy alloys with high volume fraction of γ’-phase with an extended range of (Al+Ti)-concentrations (up to 20 at%) is proposed.•Critical concentration limits of Fe/Cr/Co is defined as a function of Al/Ti for high entropy alloys with γ + γ’ phase field is proposed.•High entropy alloys with γ + γ’ structure showed excellent strength/coarsening resistance at 800 °C.