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High-toughness aluminum alloy profile based on room-temperature stress cyclic strengthening process

A technology of aluminum alloy profiles and room temperature stress, which is applied in the field of aluminum alloy processing, can solve the problems of aluminum alloy fatigue, adverse effects on tensile and corrosion properties, long artificial aging heat treatment time, poor solute atoms, etc., to improve strength and toughness, Short time consumption, the effect of strengthening the alloy

Inactive Publication Date: 2021-07-13
池州市安安新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the long time of artificial aging heat treatment, the energy consumption is large; and the aging heat treatment process will form a "precipitation-free zone" near the grain boundary of the structure. The solute atoms in this area are poor and the strength is weaker than that of the intragranular matrix. Detrimental effects on alloy fatigue, tensile and corrosion properties

Method used

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  • High-toughness aluminum alloy profile based on room-temperature stress cyclic strengthening process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, a high-strength and tough aluminum alloy profile based on room temperature stress cycle strengthening process, the mass percentage of each element composition is: nano-Si 0.3%, Mn 0.6%, Mo 0.05%, Nd 0.09%, V 0.05%, Sc 0.03% , La0.03%, Cu 0.9%, nano-Si3B4 0.5%, Zn 0.5%, Cr 0.3%, Ti 0.6%, Fe 0.5%, Ru0.05%, carbon fiber and carbon nanotube mixture 1.5%, aluminum alloy inoculant 0.6%, the balance is Al.

[0038] Wherein, the mixed mass percentage of carbon fiber and carbon nanotube is 50%:50%.

[0039] Wherein, the aluminum alloy inoculant includes Sr 0.03%, Ce 0.03%, Sc 0.05%, Ba 0.08%, and the balance is Al.

[0040] A room temperature stress cyclic strengthening process applied to high-strength and tough aluminum alloy profiles, the cyclic strengthening process includes the following steps:

[0041] 1). Heating and melting: Put the aluminum alloy into the melting furnace, then evacuate the melting furnace, and fill it with a sufficient amoun...

Embodiment 2

[0052] Such as figure 1 As shown, a high-strength and tough aluminum alloy profile based on room temperature stress cycle strengthening process, the mass percentage of each element composition is: nano-Si 1.2%, Mn 0.3%, Mo 0.10%, Nd 0.03%, V 0.09%, Sc 0.02% , La0.07%, Cu 0.4%, nano-Si3B40.9%, Zn 0.2%, Cr 0.6%, Ti 0.2%, Fe 1.5%, Ru 0.02%, carbon fiber and carbon nanotube mixture 3.0%, aluminum alloy inoculant 0.2%, the balance is Al.

[0053] Wherein, the mixed mass percentage of carbon fiber and carbon nanotube is 40%:60%.

[0054] Wherein, the aluminum alloy inoculant includes Sr 0.03%, Ce 0.03%, Sc 0.05%, Ba 0.08%, and the balance is Al.

[0055] A room temperature stress cyclic strengthening process applied to high-strength and tough aluminum alloy profiles, the cyclic strengthening process includes the following steps:

[0056] 1). Heating and melting: Put the aluminum alloy into the melting furnace, then evacuate the melting furnace, and fill it with a sufficient amoun...

Embodiment 3

[0067] The difference between this embodiment and embodiment 1 is:

[0068] A high-strength and tough aluminum alloy profile based on room temperature stress cycle strengthening process, the mass percentage of each element composition is: nano-Si 0.3%, Mn 0.3%, Mo 0.05%, Nd 0.03%, V 0.05%, Sc 0.02%, La 0.03 %, Cu0.4%, nano-Si3B4 0.5%, Zn 0.2%, Cr 0.3%, Ti 0.2%, Fe 0.5%, Ru 0.02%, mixture of carbon fiber and carbon nanotube 1.5%, aluminum alloy inoculant 0.2%, remaining The amount is Al.

[0069] Wherein, the mixed mass percentage of carbon fiber and carbon nanotube is 30%:70%.

[0070] Wherein, the aluminum alloy inoculant includes Sr 0.03%, Ce 0.01%, Sc 0.05%, Ba 0.05%, and the balance is Al.

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Abstract

The invention provides a high-toughness aluminum alloy profile based on a room-temperature stress cycle strengthening process. The high-toughness aluminum alloy profile comprises the following elements: 0.3%-1.2% of nano Si, 0.3%-0.6% of Mn, 0.05%-0.10% of Mo, 0.03%-0.09% of Nd, 0.05%-0.09% of V, 0.02%-0.03% of Sc, 0.03%-0.07% of La, 0.4%-0.9% of Cu, 0.5%-0.9% of nano Si3B4, 0.2%-0.5% of Zn, 0.3%-0.6% of Cr, 0.2%-0.6% of Ti, 0.5%-1.5% of Fe, 0.02%-0.05% of Ru, 1.5%-3.0% of a mixture of carbon fibers and carbon nanotubes, 0.2%-0.6% of an aluminum alloy inoculant and the balance of Al. According to the high-toughness aluminum alloy profile based on the room-temperature stress cycle strengthening process, the strength and the toughness are improved through raw material composition of rare earth and carbon materials and room-temperature stress cycle strengthening.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to a high-strength and tough aluminum alloy profile based on a stress cycle strengthening process at room temperature. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welded structural parts of aluminum alloy is increasing day by day, so that the research on weldability of aluminum alloy is also in-depth. Aluminum alloy is currently the most widely used alloy. [0003] Aluminum alloy and its processing materials have a series of excellent characteristics, such as low density, high specific strength and specific steel degree, good elasticity, excellent impact resistance, corrosion resistance, high electrical an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/06C22C49/14C22C47/08C22F1/04C22C101/10
CPCC22C49/06C22C49/14C22C47/08C22F1/04
Inventor 李小蕴刘沛峰汪科林黄进项泽元黄中月吴炜周建峰
Owner 池州市安安新材科技有限公司
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