Aluminum-steel double-metal composite material and manufacturing method thereof

The invention discloses an aluminum-steel bimetal composite material and a manufacturing method thereof, the aluminum-steel bimetal composite material comprises matrix steel, a copper transition layer, an aluminum-magnesium alloy and a metal wire, the metal wire penetrates through the copper transition layer, one end part of the metal wire is located in the matrix steel, the other end part of the metal wire is located in the aluminum-magnesium alloy, and the metal wire is a tantalum wire, a niobium wire or a tungsten wire; the gradient wear-resistant carbide composite material is positioned between the metal wire and the matrix steel; the gradient solid solution is positioned between the metal wire and the aluminum-magnesium alloy; according to the manufacturing method of the aluminum-steel bimetal composite material, the mode that macroscopic heterostructure occlusion and microscopic gradient structure fusion are combined is adopted, the macroscopic heterostructure occlusion is achieved through a two-step lo