A high-entropy alloy (HEA) AlTiCrNiTa coating with near-equal molar ratio was prepared on the base of zircaloy-4 substrates using radio frequency (RF) magnetron sputtering (MS) technology. The microstructure, mechanical properties and surface wettability were systematically investigated. Moreover, the corrosion property of the coating was studied after a 45-day autoclave test. The results indicate that structure of the AlTiCrNiTa HEA coating is almost amorphous with some FCC nano-crystallized domains and the coating has a high hardness of 18.34 GPa. After 45-day autoclave test, AlTiCrNiTa HEA coating still effectively protected the Zr-4 substrate from oxide. The mechanism of the corrosion process of the HEA AlTiCrNiTa coating was evaluated in detail.

使用射频（RF）磁控溅射（MS）技术在Zircaloy-4基底上制备了摩尔比几乎相等的高熵合金（HEA）AlTiCrNiTa涂层。对组织，力学性能和表面润湿性进行了系统的研究。此外，在45天的高压釜测试之后研究了涂层的腐蚀性能。结果表明，AlTiCrNiTa HEA涂层的结构几乎是无定形的，具有一些FCC纳米晶畴，并且该涂层具有18.34 GPa的高硬度。经过45天高压釜测试后，AlTiCrNiTa HEA涂层仍有效保护Zr-4衬底免受氧化物的侵蚀。详细评估了HEA AlTiCrNiTa涂层腐蚀过程的机理。