📌 Other directions

High-entropy alloys (HEAs) break the traditional alloy design framework based on a single principal element, offering excellent mechanical strength, wear resistance, and corrosion resistance. Therefore, HEA thin films are widely used for surface protection in harsh environments, making them highly promising next-generation hard protective coating materials. Our laboratory has recently made significant progress in advanced HEA coatings through close collaboration with research teams from the Department of Chemistry at Chang Gung University, the Department of Orthopedic Surgery at Chang Gung Memorial Hospital, and the Department of Materials Engineering at Ming Chi University of Technology. By jointly utilizing a superimposed High-Power Impulse Magnetron Sputtering and Medium Frequency (HiPIMS-MF) technique, we have successfully developed various nanocomposite HEA coatings, including AlCrNbSiTiBCN, TiZrNbTaFeC, and TiZrNbTaFeCN. By precisely tuning the contents of non-metal elements like carbon, boron, and nitrogen, we significantly optimized the microstructure and mechanical properties of the films. These novel coatings exhibit not only exceptional structural density but also superior anti-corrosion and anti-wear capabilities in tribocorrosion tests, greatly enhancing the protective effect and lifespan of the substrates.