Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment

Abstract

The invention provides a method for preparing a high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment, which is characterized in that the Cu-Fe deformation in-situ composite material in the method is finally prepared into a formed copper material through technical process flows of material proportioning, smelting, casting or continuous casting, magnetic field control solidification, hot forging or hot milling, solid solution treatment, cold milling, cold pulling and magnetic field ageing control. The magnetic field is exerted in the ingot casting solidification process, the solidification of the Cu-Fe deformation in-situ composite material is controlled, Fe dendritic crystals carry out extremely obvious thinning, and the Fe aliquation is reduced, so the material disperses and distributes the uniform and fine Fe fiber phase in a base body after the subsequent cold deformation processing, and the intensity of the material is greatly improved. The magnetic field is exerted in the ageing process treatment process for promoting the Fe separation, increasing the separation amount of Fe particles, reducing the separation phase dimension and promoting the separation phase dispersion distribution, so the conductivity of the material is greatly improved, and the intensity of the material is further improved. The preparation process is simple, and the cost is low. The invention is applicable to the preparation of the high-performance Cu-Fe deformation in-situ composite material or other similar materials.

Description

technical field

[0001] The invention relates to a method for preparing Cu-Fe deformation in-situ composite material by using magnetic field treatment, which belongs to the technical field of non-ferrous metal materials. Background technique

[0002] High-strength and high-conductivity copper alloy materials are structural functional materials with excellent comprehensive physical and mechanical properties, and are widely used in electronics, information, transportation, energy, metallurgy, electromechanical and other fields. With the development of science and technology and modern industry, higher requirements are put forward for the performance of copper and copper alloys. In the manufacture of large-scale integrated circuit lead frames, electrified railway contact wires, high-intensity magnetic field coils, high-voltage switch springs, microwave tubes, and components of aerospace vehicles, materials are required to maintain excellent electrical conductivity and have highe...

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