High-strength aluminum alloy processed through nickel carbide and preparation method thereof

Abstract

The invention discloses a high-strength aluminum alloy processed through nickel carbide and a preparation method of the high-strength aluminum alloy processed through the nickel carbide. The high-strength aluminum alloy comprises, by weight, 3.0%-3.2% of copper, <=0.1% of manganese, 0.45%-0.5% of magnesium, <=0.01% of chromium, 1.0%-1.5% of zinc, <=0.1% of titanium, <=0.5% of silicon, and <=0.5% of ferrum, wherein modificator, NiC3, accounts for 0.05%-0.1% of the total amount of furnace burden and the balance is aluminum and unavoidable trace impurities. The high-strength aluminum alloy processed through the nickel carbide has the advantages of being high-strength and good in casting property.

Description

technical field [0001] The invention relates to an aluminum alloy material and a high-quality treatment method thereof, in particular to a nickel carbide-treated high-strength aluminum alloy and a preparation method thereof. Background technique [0002] Aluminum alloys for deep processing often need to be first cast into large ingots, such as flat ingots, round bars, etc., and then processed into various finished products by means of rolling, extrusion, forging, etc. These processes are basically related to heat treatment. Combined, if the final product can be used directly, it will also go through operations such as segmentation, surface processing, and passivation treatment. These processing methods require that the aluminum alloy material itself has good deep processing performance, including casting performance, pressure processing deformation performance, heat treatment strengthening performance, corrosion resistance performance, fatigue damage resistance performance, ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of formability of aluminum alloy in the melting and casting process and the problem of low hardenability in the heat treatment process. The treatment method is to add nickel carbide to partially dissolve it in the melt, provide atomic alloy elements Ni and C elements, and generate a variety of atomic metamorphic elements. With the support of atomic states and rapid and uniform distribution methods, it can overcome the aluminum alloy Insufficient performance, improve its strength, toughness, formability and hardenability, and provide high-end substrates for efficient deep processing