Physics

Amorphous metal

Biocompatible material

Thermal stability

Crystallography

Paramagnetism

Engineering

Biomedical engineering

Chemistry

Metallurgy

Materials science

Corrosion

Condensed matter physics

Alloy

High entropy alloys

Zirconium alloy

Amorphous solid

Chemical engineering

Medicine

Materials Science and Engineering C

Present work unveils novel magnetic resonance imaging (MRI) compatible glassy Ti-Zr-Nb-Hf-Si alloys designed based on a high entropy alloys approach, by exploring the central region of multi-component alloy phase space. Phase analysis has revealed the amorphous structure of developed alloys, with a higher thermal stability than the conventional metallic glasses. The alloys exhibit excellent corrosion properties in simulated body fluid. Most importantly, the weak paramagnetic nature (ultralow magnetic susceptibility) and superior radiopacity (high X-ray attenuation coefficients) offer compatibility with medical diagnostic imaging systems thereby opening unexplored realms for biomedical applications.

Tailoring biocompatible Ti-Zr-Nb-Hf-Si metallic glasses based on high-entropy alloys design approach