Research Progress on Laser-cladded High-Entropy Alloy Coatings

Abstract:

High-entropy alloys demonstrate outstanding comprehensive performance due to their revolutionary multi-component design concept, making them ideal materials for achieving structural-function integration. The laser cladded high-entropy alloy coatings combines the performance advantages of high-entropy alloys with the technical advantages of laser cladding, achieving a high-quality balance among surface performance, mechanical performance, and functional performance, and showing great potential for engineering applications. This paper starts from the "process-microstructure-performance" relationship and the intrinsic mechanism. The preparation methods and optimization strategies are summarized. The microstructure, performance and performance improvement mechanisms under single and coupled conditions are revealed. The potential application scenarios and the problems that need to be solved urgently in current applications and the future development direction are disccused.