Microstructure and mechanical properties of lightweight AlCrTiV0.5Cux high-entropy alloys

High-entropy alloys(HEAs)are an emerging and rapidly developing family of alloys with appealing properties such as lightweight HEAs with excellent mechanical properties.In this study,to obtain lightweight HEAs with exceptional hardness,we prepared AlCrTiV0.5Cux(x=0,0.2,0.4,0.6,0.8 and 1.0,denoted as Cu0,Cu0.2,Cu0.4,Cu0.6,Cu0.8 and Cu1.0 alloys,respectively)HEAs and analyzed their microstructure and hardness.