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Low anisotropic magnetic alloy material and preparation method thereof

An anisotropic, magnesium alloy technology, applied in the field of magnesium alloy materials and their preparation, can solve the problems that cannot be widely used, the price of rare earth elements is high, and the improvement is not large, so as to achieve grain refinement and improve mechanical properties. , Improve the effect of room temperature ductility and deformability

Inactive Publication Date: 2014-12-10
CHONGQING UNIV
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  • Abstract
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Problems solved by technology

However, the above two processes are too complicated compared with ordinary extrusion and rolling processes, which increases the cost to a certain extent, and cannot be widely used
[0004] Another way to improve the plasticity and anisotropy of magnesium alloys is to add alloying elements. Studies have shown that adding rare earth elements can improve the basal texture of magnesium alloys, but the improvement is not large, and the price of rare earth elements is generally lower than that of magnesium alloys. high

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  • Low anisotropic magnetic alloy material and preparation method thereof
  • Low anisotropic magnetic alloy material and preparation method thereof
  • Low anisotropic magnetic alloy material and preparation method thereof

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Embodiment 1

[0037] The low-anisotropy magnesium alloy material of this embodiment consists of the following components by mass percentage:

[0038] Li 1.0%;

[0039] Al 3.0%;

[0040] Zn 1.0%;

[0041] Mn 0.3%;

[0042] Al-5Ti-1B 0.3%;

[0043] Impurities ≤0.3%;

[0044] Magnesium balance;

[0045] The mass percent content of each component in the Al-5Ti-1B is: Ti 5%; B 1%; the balance is Al.

[0046] The preparation method of the low-anisotropy magnesium alloy material of this embodiment is to heat the pure lithium, Al-5Ti-1B master alloy and AZ31 magnesium alloy in the formula amount to 720 ° C under the condition of vacuumizing and feeding inert gas, and wait for After the alloy is completely melted, keep it at 700°C for 15 minutes, then pour the melted alloy liquid into the mold to obtain the as-cast magnesium alloy; heat the as-cast magnesium alloy at 380°C for 3 hours, and then extrude it into a thickness of 2 mm and a thickness of 120 mm. Wide magnesium alloy sheet (extrusio...

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Abstract

The invention discloses a low anisotropic magnesium alloy material and a preparation method thereof. The low anisotropic magnetic alloy material comprises the following components in percentages by weight: 1.0% of Li, 2.5-3.5% of Al, 0.7-1.3% of Zn, 0.2-0.8% of Mn, 0.3% of Al-5Ti-1B, not more than 0.3% of impurity and the balance of magnesium. The preparation method comprises the following steps of: heating pure lithium at a formula amount, an Al-5Ti-1B intermediate alloy and an AZ31 magnesium alloy to 720 DEG C under the conditions of vacuum and inert gas, after completely smelting the alloy, thermally insulating at 700 DEG C and standing for 15 minutes, and pouring the smelted alloy into a mold. According to the invention, the Li and the Al-5Ti-1B intermediate alloy are added in the AZ31 magnesium alloy, so that the intensity of a magnesium alloy basal plan texture is reduced, the anisotropy of the magnetism alloy is reduced, grains are refined, and the mechanical property of the magnesium alloy is improved.

Description

technical field [0001] The invention relates to a magnesium alloy material and a preparation method thereof, in particular to a low anisotropy magnesium alloy material and a preparation method thereof. Background technique [0002] Magnesium alloy has the advantages of low density, high strength, high thermal conductivity, battery shielding, and easy recycling. In recent years, it has been gradually used as a lightweight structural material in the fields of transportation, communications, electronics, aerospace, and other civilian products. Deformed magnesium alloys are usually deformed by extrusion, rolling, forging and other deformation methods to improve the microstructure of the alloy and improve the performance of the magnesium alloy. Magnesium alloy has the characteristics of close-packed hexagonal crystal structure, and there are few independent slip systems under room temperature deformation conditions, resulting in low room temperature plasticity and difficult defo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/02C22C1/03B21C23/06
Inventor 蒋斌潘复生李瑞红杨青山曾迎
Owner CHONGQING UNIV
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