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High-strength and high-tenacity aluminum alloy material

A technology of aluminum alloy material and high toughness, applied in the field of aluminum alloy, can solve the problem of insufficient strength of cast aluminum alloy, and achieve the effect of improving mechanical properties, reducing the sensitivity of stress corrosion cracking, and having good application prospects.

Inactive Publication Date: 2017-05-31
宁波星源卓镁技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-strength and high-toughness aluminum alloy material. By changing the composition of the material, a high-strength and high-toughness aluminum alloy material is obtained, which overcomes the problem of insufficient strength of the cast aluminum alloy and has good application prospects

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0015] The aluminum alloy material of this embodiment is composed of the following components: Si 9.5%, Cu 1.5%, Fe 0.5%, Mn 1.25%, Mg 0.6%, Cr 0.1%, Pb 0.1%, Ti 0.1%, Ni 0.01%, Zn 1%, Sn 0.1%, and the balance Al.

[0016] After testing, the tensile strength of the material in this embodiment is 812MPa, and the elongation is 12.5%.

Embodiment 2

[0018] The aluminum alloy material of this embodiment is composed of the following components: Si 10.0%, Cu 2.0%, Fe 1%, Mn 1.0%, Mg 0.4%, Cr 0.15%, Pb 0.1%, Ti 0.15%, Ni 0.02%, Zn 2%, Sn 0.2%, and the balance Al.

[0019] After testing, the tensile strength of the material in this embodiment is 820 MPa, and the elongation is 13%.

Embodiment 3

[0021] The aluminum alloy material of this embodiment is composed of the following components: Si 11.0%, Cu 3.5%, Fe 2%, Mn 1.5%, Mg 0.4%, Cr 0.2%, Pb 0.2%, Ti 0.2%, Ni 0.02%, Zn 3%, Sn 0.4%, and the balance Al.

[0022] After testing, the tensile strength of the material in this embodiment is 815MPa, and the elongation is 12.8%.

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Abstract

The invention relates to a high-strength and high-tenacity aluminum alloy material. The high-strength and high-tenacity aluminum alloy material comprises 9.5%-11.0% of Si, 1.5%-3.5% of Cu, 0.05%-2% of Fe, 1.0%-1.5% of Mn, 0.4%-0.6% of Mg, 0.1%-0.2% of Cr, 0.01%-0.2% of Pb, 0.1%-0.2% of Ti, 0.01%-0.02% of Ni, 1%-3% of Zn, 0.1%-0.4% of Sn and the balance Al. Through material composition changing, the high-strength and high-tenacity aluminum alloy material is obtained, the problem that a cast aluminum alloy is insufficient in strength is solved, and good application prospects are achieved.

Description

technical field [0001] The invention belongs to the field of aluminum alloys, in particular to a high-strength and high-toughness aluminum alloy material. Background technique [0002] Aluminum alloy is an extended product of pure aluminum, and the density of pure aluminum is small (ρ=2.7g / m 3 ), which is about 1 / 3 of that of iron, and has a low melting point, about 660°C. Aluminum has a face-centered cubic structure, so it has high plasticity (δ: 32-40%, ψ: 70-90%), so It is easy to process, can be made into various profiles and plates, and has good corrosion resistance. However, the strength of pure aluminum is very low, so it is not suitable for structural materials. Through long-term production practice and scientific experiments, people have gradually strengthened aluminum by adding alloying elements and using heat treatment, which resulted in a series of aluminum alloys. [0003] Casting aluminum alloy, as the name suggests, is based on aluminum, filling the mold in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02
CPCC22C21/02
Inventor 邱卓雄
Owner 宁波星源卓镁技术股份有限公司
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