Method for preparing alkene alloy by accumulative roll bonding technology and alkene alloy

Abstract

The invention provides a method for preparing an alkene alloy by an accumulative roll bonding technology and the alkene alloy. The method for preparing the alkene alloy by the accumulative roll bonding technology comprises the steps that a plurality of metal plates are provided; graphene is applied to the surfaces of the metal plates; the metal plates are superimposed to form multi-plate structural pieces; first cold rolling is carried out on the multi-plate structural pieces; diffusion annealing is carried out on the multi-plate structural pieces after first cold rolling, and cutting off is carried out; the cut structural pieces are superimposed to form laminated structural pieces; second cold rolling is carried out on the laminated structural pieces, and diffusion annealing is carried out; and the processes of N times of cutting off, superimposing, cold rolling and diffusion annealing are repeated continuously, and N is an integer greater than or equal to zero.

Description

technical field [0001] The invention relates to an alloy in which graphene is used as a second phase material inside a metal and a preparation method thereof, in particular to an alloy preparation method of a cumulative stack rolling process. Background technique [0002] With the progress of global industrialization, the demand for high-strength non-ferrous metal materials is growing; from the perspective of energy saving, the lightweight of industrial metals is a trend; from the perspective of saving metal mineral resources, the use of carbon materials with huge reserves on the earth to strengthen Non-ferrous metals will be a huge breakthrough. Since aluminum, copper, magnesium, nickel, etc. are not carbide-forming elements (defined in materials science), the solid solubility of carbon atoms in these elements is very low, and traditional carbon materials cannot be used alone as reinforcing materials. The strengthening of these metals usually relies on 1) alloying to obtai...

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Problems solved by technology

[0005] The preparation of graphene-reinforced aluminum-based alloys by powder metallurgy has the following disadvantages: 1) The gas adsorbed on the powder surface cannot be completely eliminated in the subsequent process, and the product evaluation index includes porosity, and the tensile strength of the product is limited, so it cannot be used to prepare large industrial parts ; 2) The powder metallurgy process has many processes and a long production cycle; 3) the currently reported graphene-aluminum composite material is still in the exploratory stage and has not been recognized by the industrial field; 4) aluminum powder is rocket fuel and is a controlled item

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