Ni-Al-Ti-based high-temperature alloy with layered microstructure and preparation method of Ni-Al-Ti-based high-temperature alloy

According to the Ni-Al-Ti-based high-temperature alloy with the layered microstructure, the layered microstructure is composed of a gamma matrix, a cubic gamma precipitated phase and gamma particles, the cubic gamma precipitated phase is distributed in the gamma matrix, the gamma particles grow in the gamma precipitated phase, and the cubic gamma precipitated phase is of an L12 type structure. The invention further relates to a preparation method of the Ni-Al-Ti-based high-temperature alloy with the layered microstructure. The Ni-Al-Ti-based high-temperature alloy with the layered microstructure is obtained through single crystal casting, annealing, pre-aging treatment and aging treatment. Compared with a traditional gamma/gamma coherent structure, the layered microstructure can enable the alloy to have better mechanical properties, due to the fact that gamma particles in a gamma precipitated phase can improve the shearing resistance during gamma deformation, the mechanical properties of the material are impr