Sustainable High Corrosion Resistance in High-Concentration NaCl Solutions for Refractory High-Entropy Alloys with High Strength and Good Plasticity.

ABSTRACT: Among corrosive environments, Cl^- is one of the most aggressive anions which can cause electrochemical corrosion and the resultant failures of alloys, and the increase in Cl^- concentration will further deteriorate the passive film in many conventional alloys. Here, we report single-phase Nb₂₅Mo₂₅Ta₂₅Ti₂₀W₅C_x (x = 0.1, 0.3, 0.8 at.%) refractory high-entropy alloys (RHEAs) with excellent corrosion resistance in high-concentration NaCl solutions. According to potentiodynamic polarization, electrochemical impedance spectroscopy, corroded morphology and the current-time results, the RHEAs demonstrate even better corrosion resistance with the increase in NaCl concentration to 23.5 wt.%, signific

SUBMITTER: Chen S 

PROVIDER: S-EPMC12839976 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature