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Wrought aluminum alloy with high mechanical property and preparation method thereof

A technology for deforming aluminum alloys and mechanical properties, which is applied in the field of deformed aluminum alloys with high mechanical properties and its preparation, and achieves the effects of reducing the cost of the alloy, lowering the dosage, and improving the plasticity at room temperature.

Pending Publication Date: 2022-06-28
SHANDONG NANSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a deformed aluminum alloy with high mechanical properties and a preparation method thereof to solve the defects in the prior art

Method used

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  • Wrought aluminum alloy with high mechanical property and preparation method thereof
  • Wrought aluminum alloy with high mechanical property and preparation method thereof
  • Wrought aluminum alloy with high mechanical property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: According to Mg1.5%, Si0.5%, Cu0.2%, Ce0.1%, the balance is the mass percentage of Al, and pure aluminum, pure magnesium and master alloy Al-20Si, master alloy Al -25Cu, master alloy Al-30Ce preheated to 250℃;

[0029] Step 2: Open the smelting furnace, place pure aluminum in the crucible, raise the furnace temperature to 710°C, wait for the pure aluminum to melt, raise the temperature to 760°C, add pure magnesium and master alloy Al-20Si, master alloy Al-25Cu, master alloy Al-30Ce is melted and mixed uniformly to form a melt; after the melt is allowed to stand for 30min, the refining process is carried out, and then it is poured into a preheated casting mold to melt and cast to obtain the aluminum alloy ingot;

[0030] Step 3: perform high temperature homogenization treatment on the as-cast aluminum alloy obtained in step 2 in a heat treatment furnace, with a heating rate of 20°C / min, heating to 480°C, holding for 24 hours, and air-cooling the ingot to room tem...

Embodiment 2

[0037] Step 1: According to Mg2.0%, Si1.0%, Cu0.5%, Ce0.2%, the balance is the mass percentage of Al, and pure aluminum, pure magnesium and master alloy Al-20Si, master alloy Al -25Cu, master alloy Al-30Ce preheated to 250℃;

[0038] Other process steps are the same as in Example 1.

Embodiment 3

[0040] Step 1: According to Mg2.5%, Si1.5%, Cu0.9%, Ce0.3%, the balance is the mass percentage of Al, and pure aluminum, pure magnesium and master alloy Al-20Si, master alloy Al -25Cu, master alloy Al-30Ce preheated to 250℃;

[0041] Other process steps are the same as in Example 1.

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Abstract

A wrought aluminum alloy with high mechanical properties and a preparation method thereof belong to the field of wrought aluminum alloy manufacturing, and the wrought aluminum alloy comprises the following substances in percentage by mass: 1.5-2.5% of Mg, 0.5-1.5% of Si, 0.2-1.2% of Cu, 0.1-0.5% of Ce, and the balance of Al and impurities. By adding a small amount of copper and cerium alloy elements, formation and precipitation of a second phase are promoted, and the mechanical property of the alloy is improved; meanwhile, the mechanical property can be effectively improved through precipitation of a high-density second phase; besides, by combining various strengthening effects of fine grain strengthening, precipitation strengthening and the like, the alloy has a relatively high elastic modulus while the mechanical property of the alloy is well improved; the process equipment involved in the invention is universal equipment, and is relatively low in cost, easy to operate and easy to realize industrially.

Description

technical field [0001] The invention belongs to the field of deformed aluminum alloy manufacturing, in particular to a deformed aluminum alloy with high mechanical properties and a preparation method thereof. Background technique [0002] Aluminum alloy has the advantages of light weight, shock absorption, good electromagnetic shielding performance, good machinability, etc. It has important application value and wide application prospects in aerospace, electronic products, automobiles and other industries. Green Engineering Materials with Development Potential and Promising". However, the application of aluminum alloys is far behind that of steel, and its application potential has not yet been fully explored. One of the important reasons is that the common ternary and quaternary aluminum alloys have various unsatisfactory performances. In particular, the strength of the alloy cannot meet the needs of the industry well, which greatly limits its application range. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047C22F1/05B23P15/00C22C1/03
CPCC22C21/08C22C1/03C22C1/026B23P15/00C22F1/047C22F1/05
Inventor 王从昆吕天丛殷丽丽张卫马旭
Owner SHANDONG NANSHAN ALUMINUM
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