Wear-resistant and corrosion-resistant composite layer and preparation method thereof

The invention belongs to the technical field of functional coatings, and particularly relates to a wear-resistant and corrosion-resistant composite layer and a preparation method thereof. The invention provides a wear-resistant and corrosion-resistant composite layer which comprises a bottom layer, a transition layer and a surface layer which are stacked, and the surface layer is a high-entropy alloy layer and a Ti2AlN layer which are alternately stacked; the innermost layer of the surface layer is a high-entropy alloy layer, and the outermost layer of the surface layer is a Ti2AlN layer; the chemical composition of the high-entropy alloy layer is AlSimCrFeNiTiMoV-N, m is larger than or equal to 0 and smaller than or equal to 0.2, and m is the atomic ratio. Embodiments show that the wear-resistant and corrosion-resistant composite layer provided by the invention has excellent wear resistance and good corrosion resistance. 本发明属于功能涂层技术领域，特别涉及一种耐磨耐蚀复合层及其制备方法。本发明提供了一种耐磨耐蚀复合层，包括层叠设置的底层、过渡层和表层，所述表层为交替层叠的高熵合金层和Ti2Al