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High-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and preparation method thereof

A technology of deformed aluminum alloy and al-cu-mg-mn-er, which is applied in the field of aluminum alloy materials, can solve the problems of insufficient mechanical properties of deformed aluminum alloy and inability to meet process requirements, and achieves shortening heat treatment time and fine grains. Grain effect, effect of high tensile and yield strength

Inactive Publication Date: 2017-04-26
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiments of the present invention provide a high-strength Al-Cu-Mg-Mn-Er deformed aluminum alloy and its preparation method, which are used to sol

Method used

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  • High-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and preparation method thereof
  • High-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and preparation method thereof
  • High-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and preparation method thereof

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Embodiment 1

[0032] Embodiment 1 of the present invention provides a high-strength Al-Cu-Mg-Mn-Er deformed aluminum alloy, wherein the mass percentage of each content component is Cu: 4.3, Mg: 0.8, Mn: 0.5, Er: 0.3, and the balance is Al and inevitable impurities.

[0033] Specifically, the preparation method of the high-strength Al-4.3Cu-0.8Mg-0.5Mn-0.3Er deformed aluminum alloy includes the following steps:

[0034] (1) Smelting;

[0035] Prepare pure aluminum, pure zinc, pure magnesium, pure copper, Al-10% Mn master alloy and Al-4.77% Er master alloy as raw materials for smelting. Specifically, put pure aluminum and pure aluminum in the preheated crucible in turn Copper, Al-10% Mn master alloy and Al-4.77% Er master alloy, the melting temperature is 750 ℃, and stir, add pure magnesium after complete melting, stir evenly after melting, add refining agent to remove slag, adjust the temperature When the temperature reaches 720°C, the aluminum alloy ingot is poured after the temperature is kept ...

Embodiment 2

[0044] Embodiment 2 of the present invention provides a high-strength Al-Cu-Mg-Mn-Er deformed aluminum alloy, wherein the mass percentage of each content component is Cu: 4.4, Mg: 0.9, Mn: 0.5, Er: 0.4, and the balance is Al and inevitable impurities.

[0045] Specifically, the preparation method of the high-strength Al-4.4Cu-0.9Mg-0.5Mn-0.4Er deformed aluminum alloy includes the following steps:

[0046] (1) Smelting;

[0047] Prepare pure aluminum, pure zinc, pure magnesium, pure copper, Al-10% Mn master alloy and Al-4.77% Er master alloy as raw materials for smelting. Specifically, put pure aluminum and pure aluminum in the preheated crucible in turn Copper, Al-10% Mn master alloy and Al-4.77% Er master alloy, the melting temperature is 750 ℃, and stir, add pure magnesium after complete melting, stir evenly after melting, add refining agent to remove slag, adjust the temperature When the temperature reaches 720°C, the aluminum alloy ingot is poured after the temperature is kept ...

Embodiment 3

[0056] Embodiment 3 of the present invention provides a high-strength Al-Cu-Mg-Mn-Er deformed aluminum alloy, wherein the mass percentage of each content component is Cu: 4.5, Mg: 1.0, Mn: 0.5, Er: 0.5, and the balance is Al and inevitable impurities.

[0057] Specifically, the preparation method of the high-strength Al-4.5Cu-1Mg-0.5Mn-0.5Er deformed aluminum alloy includes the following steps:

[0058] (1) Smelting;

[0059] Prepare pure aluminum, pure zinc, pure magnesium, pure copper, Al-10% Mn master alloy and Al-4.77% Er master alloy as raw materials for smelting. Specifically, put pure aluminum and pure aluminum in the preheated crucible in turn Copper, Al-10% Mn master alloy and Al-4.77% Er master alloy, the melting temperature is 750 ℃, and stir, add pure magnesium after complete melting, stir evenly after melting, add refining agent to remove slag, adjust the temperature When the temperature reaches 720°C, the aluminum alloy ingot is poured after the temperature is kept fo...

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Abstract

The invention discloses high-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and a preparation method thereof and relates to the field of aluminum alloy materials. The high-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and the preparation method thereof are used for solving the problems that in the prior art, the mechanical property of Al-Cu-Mg system wrought aluminum alloy is insufficient and cannot meet the strict process requirements. The high-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy comprises the components of, by mass, 4.3%-4.5% of Cu, 0.8%-1.0% of Mg, 0.5% of Mn, 0.3%-0.5% of Er, and the balance Al and unavoidable impurities. The high-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy has high toughness and also has high tensile strength and yield strength.

Description

Technical field [0001] The invention relates to the field of aluminum alloy materials, and more specifically to a high-strength Al-Cu-Mg-Mn-Er deformed aluminum alloy and a preparation method thereof. Background technique [0002] Aluminum alloy is widely used in aerospace, transportation, and machinery manufacturing industries due to its low density, high specific strength and specific rigidity, and excellent forming properties. Wrought aluminum alloy can be divided into: non-heat-treatable strengthened aluminum alloy and heat-treatable strengthened aluminum alloy. For non-heat-treatable strengthened aluminum alloys, they can only be used as structural parts that carry relatively small loads. Compared with non-heat-treatable reinforced aluminum alloys, heat-treatable reinforced aluminum alloys have higher heat resistance and better plasticity and processing properties, and have great advantages in broadening the application fields of deformed aluminum alloy materials. However,...

Claims

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Application Information

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IPC IPC(8): C22C21/16C22C1/03C22F1/057
CPCC22C21/16C22C1/026C22C1/03C22F1/057
Inventor 车欣陈立佳李锋吴伟杨林朱庆岩
Owner SHENYANG POLYTECHNIC UNIV
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