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High-strength heat-resistant deformation magnesium alloy material and preparation method thereof

A heat-resistant deformation and magnesium alloy technology, which is applied in the field of magnesium alloy production in non-ferrous metals, can solve the problems of high alloy cost and achieve the effects of improving alloy fluidity, excellent elongation, and grain refinement

Active Publication Date: 2019-09-20
XIANGTAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These rare earth magnesium alloys have high performance, but due to the high alloy cost due to the rare earth content, they are not suitable for widespread promotion in the civilian field.

Method used

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  • High-strength heat-resistant deformation magnesium alloy material and preparation method thereof
  • High-strength heat-resistant deformation magnesium alloy material and preparation method thereof
  • High-strength heat-resistant deformation magnesium alloy material and preparation method thereof

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Embodiment

[0070] Table 1 shows the mass percentages of the components of each Mg-Zn-Sn-Mn-Al deformed magnesium alloy in 14 groups of examples.

[0071]

[0072]

[0073] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0074] Including the above 14 embodiments, any one of the high-strength, high-strength, high-temperature, high-plasticity high-strength heat-resistant deformable magnesium alloys at room temperature includes the stages of smelting, extrusion and heat treatment processes during preparation;

[0075] (1) Smelting: with pure Mg, pure Zn, pure Sn, pure Al, Mg-10wt.% Mn as raw mat...

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Abstract

The invention discloses a high-strength heat-resistant deformation magnesium alloy material. The high-strength heat-resistant deformation magnesium alloy material is characterized by comprising the following components in percentage by weight of 5-7.15 wt.% of Zn, 4.1-6 wt.% of Sn, 0.6-2.2 wt.% of n. % Mn, 0.2-0.8 wt.% of Al, less than or equal to 0.15% of inevitable impurities and the balance of Mg; the invention also discloses a preparation method of the high-strength heat-resistant deformation magnesium alloy material, the preparation method is characterized by comprising the following steps: (1) smelting; (2) machining; (3) homogenizing; and (4) carrying out hot extrusion. The tensile strength of the prepared Mg-Zn-Sn-Mn-Al alloy extruded profile can reach 422 Mpa, the yield strength can reach 372 Mpa, and the average elongation rate of the extruded 150 DEG c can reach more than 65%; the magnesium alloy material and preparation method have good application and popularization prospect, and can be applied to low-cost civilian fields such as electric buses and rail transit.

Description

technical field [0001] The invention relates to the field of magnesium alloy production in non-ferrous metals, and relates to a high-strength heat-resistant deformable magnesium alloy with high strength at room temperature, high temperature and high plasticity Background technique [0002] Compared with other structural materials, magnesium alloy has the advantages of low density, light weight, strong damping vibration resistance, superior casting performance, good cutting performance, high dimensional stability, strong electromagnetic shielding ability, and high recycling rate. Therefore, magnesium alloy Widely used in automobiles, electronics, electrical appliances, transportation, aerospace, aviation and national defense military industries and other fields. However, the degree of development of magnesium alloys is still far from low, and the annual production volume is only 1% of that of aluminum alloys, which is far from giving full play to its potential advantages, mai...

Claims

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Application Information

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IPC IPC(8): C22C23/04C22C23/00C22C1/03C22C1/06C22F1/06
CPCC22C1/03C22C1/06C22C23/00C22C23/04C22F1/002C22F1/06
Inventor 齐福刚叶芝松侯彩红李连辉叶雪曹红帅赵镍刘应都欧阳晓平
Owner XIANGTAN UNIV
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