High-strength and high-plasticity magnesium zinc manganese tin calcium alloy and preparation method thereof

A magnesium-zinc-manganese-tin-calcium, high-plasticity technology, which is applied in the field of high-strength and high-plasticity magnesium-zinc-manganese-tin-calcium alloy and its preparation, can solve the problems of limiting the application of magnesium alloys, difficult plastic deformation, and low room temperature strength, and achieves low cost , inhibition of grain growth, simple preparation method

Inactive Publication Date: 2019-05-17
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current commercial wrought magnesium alloys are mainly Mg-Zn and Mg-Al, but the characteristics of low room temperature strength and difficult plastic deformation limit the further application of magnesium alloys in industry.
Patent application No. 200710078329.X discloses a magnesium-zinc-manganese magnesium alloy with high zinc content. The magnesium alloy does not contain precious metals and is cheap, but the disadvantage is that the tensile strength is still lower than ZK60
Adding alloying elements is an important way to strengthen magnesium alloys. Rare earth elements can significantly improve the performance of magnesium alloys, but they are expensive and not conducive to lightweight. Therefore, there is an urgent need for a low-cost magnesium alloy with high strength and high plasticity. Alloy and its preparation method

Method used

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  • High-strength and high-plasticity magnesium zinc manganese tin calcium alloy and preparation method thereof
  • High-strength and high-plasticity magnesium zinc manganese tin calcium alloy and preparation method thereof
  • High-strength and high-plasticity magnesium zinc manganese tin calcium alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0032] A high-strength and high-plasticity magnesium-zinc-manganese-tin-calcium alloy, the magnesium-zinc-manganese-tin-calcium alloy includes the following components in terms of mass percentage: Zn: 5.7%; Mn: 0.68%; Ca: 0.53%; Sn: 0.45%; Unavoidable impurities ≤ 0.15%; the balance is magnesium, and the magnesium alloy is prepared as follows:

[0033] (1) Smelting: According to the mass percent of each component in this magnesium-zinc-manganese-tin-calcium alloy, take magnesium ingot, zinc particle, tin ingot, manganese content and be that the magnesium-manganese master alloy of 2.7wt% and calcium content are 30wt% Magnesium-calcium master alloys, magnesium ingots, zinc particles, tin ingots, magnesium-manganese master alloys and magnesium-calcium master alloys are completely melted together at 750°C, and then cooled to 720°C within 8 minutes to keep the temperature and stand until impurities settle, after water cooling Ingots are made;

[0034] (2) Plastic processing: turn ...

Embodiment 2

[0036] A high-strength and high-plasticity magnesium-zinc-manganese-tin-calcium alloy, which comprises the following components in terms of mass percentage: Zn: 6.08%; Mn: 0.59%; Ca: 0.5%; Sn: 0.95%; Unavoidable impurities ≤ 0.15%; the balance is magnesium, and the magnesium alloy is prepared as follows:

[0037] (1) Smelting: According to the mass percent of each component in this magnesium-zinc-manganese-tin-calcium alloy, take magnesium ingot, zinc particle, tin ingot, manganese content and be that the magnesium-manganese master alloy of 2.7wt% and calcium content are 30wt% Magnesium-calcium master alloys, magnesium ingots, zinc particles, tin ingots, magnesium-manganese master alloys and magnesium-calcium master alloys are completely melted at 780°C, and then cooled to 730°C within 10 minutes and kept at rest until the impurities settle. After water cooling Ingots are made;

[0038] (2) Plastic processing: turn the ingot prepared in step (1), then raise the temperature to...

Embodiment 3

[0040] A high-strength and high-plasticity magnesium-zinc-manganese-tin-calcium alloy, the magnesium-zinc-manganese-tin-calcium alloy includes the following components in terms of mass percentage: Zn: 5.89%; Mn: 0.61%; Ca: 0.51%; Sn: 1.87%; Unavoidable impurities ≤ 0.15%; the balance is magnesium, and the magnesium alloy is prepared as follows:

[0041](1) Smelting: According to the mass percent of each component in this magnesium-zinc-manganese-tin-calcium alloy, take magnesium ingot, zinc particle, tin ingot, manganese content and be that the magnesium-manganese master alloy of 2.7wt% and calcium content are 30wt% Magnesium-calcium master alloys, magnesium ingots, zinc grains, tin ingots, magnesium-manganese master alloys and magnesium-calcium master alloys are completely melted at 760°C, and then cooled to 710°C within 5 minutes and kept at rest until impurities settle. After water cooling Ingots are made;

[0042] (2) Plastic processing: turn the ingot obtained in step (1...

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Abstract

The invention relates to a high-strength and high-plasticity magnesium zinc manganese tin calcium alloy and a preparation method thereof and belongs to the technical field of magnesium alloy production. The alloy comprises the following compositions including 5.0-7.0% of Zn, 0.5-1.5% of Mn, 0.45-0.6% of Ca, 0.35-2.5% of Sn, smaller than or equal to 0.15% of inevitable impurities and the balance magnesium. By reasonably setting the compositions in the alloy, the use amount of all the compositions and the preparation technology, it can be ensured that the prepared alloy has high strength and plasticity, and the preparation method is simple, low in cost and beneficial for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy production, and in particular relates to a high-strength and high-plasticity magnesium-zinc-manganese-tin-calcium alloy and a preparation method thereof. Background technique [0002] Magnesium alloy, as a light structural material at present, has the advantages of low density, high specific strength and specific stiffness, good damping and shock absorption, excellent electromagnetic shielding performance and easy recycling. It has important roles in aerospace, automobile and 3C fields. application. In addition, magnesium has good biocompatibility with the human body, and magnesium alloys also have broad application prospects in biomedical materials. [0003] Magnesium alloys are divided into two categories: wrought magnesium alloys and cast magnesium alloys. Cast magnesium alloys have coarse grains, serious composition segregation, and poor performance, making it difficult to meet applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/04C22C1/03C22F1/06
Inventor 张丁非陈霞潘复生冯靖凯赵阳邓天宇
Owner CHONGQING UNIV
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