A preparation method of gradient metal material with precise composition control

Abstract

The invention discloses a method for preparing a gradient metal material capable of precisely controlling the composition, by constructing a partitioned solidification box (1), a first crucible (2), a second crucible (2), and a prefabricated gradient partition (3) The gradient metal material preparation device adopts the prefabricated gradient separator (3) with precise and controllable composition to isolate the metal melts with different compositions during the casting process, and makes the multi-layer metal plates inside the prefabricated gradient separator (3) and the prefabricated Sufficient atomic diffusion is carried out between the gradient separator (3) and the molten metal on both sides, so that the gradient metal material with precise and controllable composition can be efficiently obtained. This method solves the problems of low preparation efficiency of gradient materials, difficulty in precise control of composition, and difficulty in continuous change of composition.

Description

technical field [0001] The invention relates to the technical field of preparation of gradient materials, in particular to a preparation method of gradient metal materials which can precisely control the composition. Background technique [0002] During the service process of the structure, the static force, dynamic force, heat, etc. received by different areas are often quite different. Therefore, in the design, the material performance requirements of different areas are also correspondingly different. For example, some areas require high strength and toughness, and some areas require Areas require high modulus, and some areas require high thermal conductivity. In the same structure, a single component material cannot satisfy a wide range of performance changes, and more than two kinds of materials need to be connected into one through the gradient area. [0003] At present, the preparation of gradient materials is usually realized by welding or additive manufacturing. Fo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency preparation method of gradient metal materials that can accurately control the composition, and solve the problems of low efficiency in the manufacture of gradient regions, difficulty in precise control of composition, and difficulty in achieving continuous change in material composition during the preparation of gradient materials.

Images