Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials

Applying empirical alloy parameters (including Mo equivalent), the predicted ground state diagram, and thermodynamic calculations, noble nonequiatomic Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials (BioHEAs) were designed newly developed. It is found that Moeq valence electron concentration (VEC) are useful design involving BCC structure formation in bio medium-entropy BioHEAs. Finally, we find a Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 (at.%) BioHEA exhibits biocompatibility comparable to of CP–Ti, higher mechanical strength than an appreciable room-temperature tensile ductility. The current findings pave way new BioHEAs development applicable another system.