The Progress in the Coupling and Optimization of Mechanical and Corrosion Properties in High-Entropy Alloys

High-Entropy Alloys (HEAs), as emerging multi-component materials, exhibit great potential for functional applications, particularly in corrosion-resistant coatings due to their outstanding mechanical performance and excellent corrosion resistance. However, achieving an effective balance between mechanical performance and corrosion resistance remains a key challenge for practical implementation. This study aims to elucidate the intrinsic relationship between mechanical performance and corrosion behavior in HEAs, while summarizing recent advances and emerging trends in the field. Through a review of recent literature, this paper summarizes the mechanical advantages of HEAs over conventional alloys in terms of strength, ductility, fracture toughness, fatigue endurance, and crack resistance. In addition, it examines their corrosion characteristics, particularly under chloride-containing environments. The results demonstrate that HEAs possess unique potential for achieving a synergistic optimization of mechanical and corrosion performance, although challenges such as compositional complexity and unclear service mechanisms persist. As such, it outlines the major bottlenecks and future research directions, offering theoretical insights and practical implications for the design and application of HEAs.