Layered high-strength and high-toughness composite material prepared based on wire-powder mixed deposition method

Abstract

The invention discloses a layered high-strength and high-toughness composite material prepared based on a wire-powder mixed deposition method. The problem of wire-powder mixed deposition is solved bymeans of wire fuse deposition and powder spraying, and the limitations of complex equipment transformation and difficult process control are avoided. Controllable distribution of hard materials and soft materials can be achieved through spraying of a hollowed-out mold. The contradictory limitation of the strength and toughness of a traditional homogeneous material is broken through, and the high strength and high plasticity of the material are both considered through reasonable distribution of the soft materials and the hard materials. The strength of the material is greatly improved while theplasticity of the material is slightly reduced or the plasticity of the material is not reduced. Through wire-powder mixed deposition, high-efficiency and large-batch preparation of a soft and hard interwoven high-strength and high-toughness material is realized.

Description

technical field [0001] The invention relates to the technical field of preparation of high-strength and tough composite materials, in particular to the preparation of high-strength and tough composite materials based on silk powder mixed deposition method. Background technique [0002] Metal materials, as traditional structural materials, are widely used in infrastructure, aerospace, national defense and other fields. However, with the advancement of technology and the diversification and complexity of material application scenarios, the performance requirements for metal materials continue to increase, especially the strength and toughness of materials. In metal materials, the atoms are arranged regularly, but there are defects in local areas. Under the action of external force, the metal is prone to fracture and failure at the defect position; but under a certain range of stress, defects in the metal such as dislocations, stacking faults, etc. will Slipping in one directi...

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Problems solved by technology

The above is to realize the mixed deposition of silk powder through the modification of equipment, the modification is more complicated and the control is more difficult

At the same time, it is difficult to realize the preparation of high-strength composite materials through simultaneous feeding of wire and powder alone

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