FeCoCrNiMoNb High-Entropy Alloys

Exceptional corrosion resistance

Tailoring the Laves phase via optimized Mo/Nb content significantly enhances the passivation capability of the alloy in corrosive environments.

Jiaming, Duan · Jiang, Zhineng · Huang, Feng · Zhang, Xian · Zhang, Guoan

Journal of Materials Science and Technology 2025

Advantages

Appropriate increase in Mo/Nb content leads to increased Laves phase and enhances corrosion resistance

Excessive Mo/Nb causes more severe microgalvanic corrosion between FCC and Laves phases, decreasing corrosion resistance

Laves phase is more resistant to attack by corrosive species

Presence of Mo, Nb, and Cr facilitates adsorption of H₂O/O on alloy surface, promoting protective passive film formation