High-entropy alloy film for accident fault-tolerant nuclear fuel cladding and preparation method of high-entropy alloy film

The invention discloses a high-entropy alloy film for an accident fault-tolerant nuclear fuel cladding and a preparation method of the high-entropy alloy film, and the method sequentially comprises the steps of grinding and polishing, cleaning and blow-drying, vacuum pressure reduction, sputtering deposition and the like, so that the high-entropy alloy film with an amorphous structure is formed in a magnetron sputtering mode. According to the method, the influence of different contents of different elements on the accident fault tolerance performance of the coating can be researched, meanwhile, the film prepared through the method is high in integrity and compactness, the high-temperature water vapor oxidation resistance of the zirconium alloy substrate in the nuclear reactor accident environment is effectively improved, and the service life of the zirconium alloy substrate is prolonged. And the method can effectively reduce the manufacturing process complexity and the production cost of the accident fault-to