Core-shell TiB2-Fe64Ni36 invar-based composite material

The invention belongs to the field of composite materials, and relates to a core-shell type TiB2-Fe64Ni36 invar-based composite material. The core-shell type TiB2-Fe64Ni36 invar-based composite material is composed of a reinforced structure of a core-shell type structure which takes TiB2 as a core and a Fe64Ni36 invar alloy which is used as a matrix; the reinforced structure of the core-shell type structure which takes TiB2 as the core is uniformly distributed in the matrix, and reinforced phases of different structures are formed by adjusting the atomic ratio of added Ti/B; the core-shell type TiB2-Fe64Ni36 invar-based composite material is formed by laser deposition of elemental Fe, Ni, Ti and Fe-B alloy mixed powder. The mixed powder has a particle size of 140-300 meshes, is spherical, and has chemical components as follows: 99.9% of elemental Fe, 99.9% of Ni and 99.9% of Ti, wherein the content of B in the Fe-B alloy powder is 20 wt.%. The core-shell type TiB2-Fe64Ni36 invar-based composite material provi