The amorphous AlCrFeMoTi high-entropy alloy (HEA) coating with near-equal molar ratio was successfully deposited on F/M substrate by magnetron co-sputtering technique and then was irradiated by 6 MeV Au ions with different irradiation damage doses from 10 dpa to 90 dpa. XRD, SEM, AFM, TEM and nanoindentation tests were carried out to investigate the surface morphology, microstructure and hardening effect of the coating. The results showed that the coating surface became more featureless after irradiation, where the surface roughness decreased with increasing damage doses. The crystallization phenomena occurred in amorphous AlCrFeMoTi coatings at high irradiation damage doses (45 dpa and 90 dpa), where the crystallization zone were much closer to the coating surface than the calculated peak damage region. However, the irradiation-induced crystallization did not obviously change the uniformity of elements distribution. Meanwhile, the irradiation hardening effect can be observed, and the nanohardness of the coating increased with increasing damage doses. The AlCrFeMoTi HEA coating exhibits excellent ion-irradiation resistance and has potential applications in lead cooled fast reactor. Meanwhile, this work can help us to further investigate the performance of the AlCrFeMoTi HEA coating in the coupled environment of irradiation and corrosion, and evaluate its serviceability.

通过磁控共溅射技术成功地将摩尔比几乎相等的非晶态AlCrFeMoTi高熵合金涂层沉积在F / M衬底上，然后用6MeV Au离子辐照，辐照剂量从10 dpa到90 d，辐照损伤剂量不同。 dpa。进行了XRD，SEM，AFM，TEM和纳米压痕测试，以研究涂层的表面形貌，微观结构和硬化效果。结果表明，辐照后涂层表面无特征，表面粗糙度随损伤剂量的增加而降低。在高辐照损伤剂量（45 dpa和90 dpa）下，非晶态AlCrFeMoTi涂层中发生结晶现象，其中结晶区比计算的峰值损伤区域更接近涂层表面。然而，辐照引起的结晶并没有明显改变元素分布的均匀性。同时，可以观察到辐射硬化效果，并且涂层的纳米硬度随着损伤剂量的增加而增加。AlCrFeMoTi HEA涂层具有出色的抗离子辐照性，并且在铅冷却快堆中具有潜在的应用前景。同时，这项工作可以帮助我们进一步研究AlCrFeMoTi HEA涂层在辐射和腐蚀的耦合环境下的性能，并评估其使用寿命。AlCrFeMoTi HEA涂层具有出色的抗离子辐照性，并且在铅冷却快堆中具有潜在的应用前景。同时，这项工作可以帮助我们进一步研究AlCrFeMoTi HEA涂层在辐射和腐蚀的耦合环境下的性能，并评估其使用寿命。AlCrFeMoTi HEA涂层具有出色的抗离子辐照性，并且在铅冷却快堆中具有潜在的应用前景。同时，这项工作可以帮助我们进一步研究AlCrFeMoTi HEA涂层在辐射和腐蚀的耦合环境下的性能，并评估其使用寿命。