Tribological design of NiMoBNb-based separator multilayer composite structure material and preparation method of the material

The invention discloses a NiMoBNb-based separator multilayer composite structure material and a preparation method thereof. According to the method, NiMoBNb matrix powder, a reinforcing material and amulti-component composite material are used as raw materials, and the NiMoBNb-based separator multilayer composite structure material with different layer thicknesses and different material components is prepared through the technological processes of vibration and mixing, multilayer structure pre-forming, surface treatment and layer-by-layer superposition sintering. The NiMoBNb-based separator multilayer composite structure material can meet the performance requirements of all parts of a separator self-lubricating material, can also be used in extremely severe environments with high temperature, high pressure and high corrosivity, realizes high performance and reliable work, has bearing capacity, compression resistance, high-temperature resistance and corrosion resistance, and particularly has tribological prope