2熔鹽中進行電脫氧，制備了CoCrFeNi高熵合金。通過X射線衍射（XRD）、掃描電子顯微鏡（SEM）和能量色散X射線能譜（EDS）研究了不同電解時間下金屬氧化物轉(zhuǎn)化為高熵合金的相變過程。結(jié)果表明，CoCrFeNi高熵合金的形成過程包括快速脫氧和深度脫氧2個階段。在快速脫氧階段，在1 h內(nèi)去除了燒結(jié)氧化物球團中93.93%（質(zhì)量分數(shù)）的氧，電流效率達到89.95%。電解結(jié)束后，產(chǎn)物的氧含量可達0.26%（質(zhì)量分數(shù)），電流效率為17.93%。該高熵合金的形成過程可用于指導(dǎo)建立低成本、高效率的電化學(xué)路線。;CoCrFeNi high entropy alloys (HEAs) were prepared by electro-deoxidization of metal oxides in CaCl2 molten salt at 1173 K. The phase transformation from the metal oxides to HEA under different electrolysis durations was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The results show that the formation process of CoCrFeNi HEA includes two stages: the rapid deoxidization stage and deep deoxidization stage. In the rapid deoxidization stage, 93.93wt% oxygen in sintered oxide pellet is removed within 1 h and the current efficiency reaches 89.95%. After electrolysis of 15 h, the oxygen content of the product is 0.26wt% and the current efficiency is 17.93%. The formation process of CoCrFeNi HEA provides guidance for establishing the electrochemical route with low cost and high efficiency."/>