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High-room-temperature-elongation wrought magnesium alloy and preparation method thereof

A technology of deforming magnesium alloy and elongation rate, which is applied in the field of nonferrous metallurgy, can solve the problems of high cost, complicated process, and restrictions on alloy application, and achieve the effects of high room temperature shaping, large application prospects, and high room temperature ductility

Inactive Publication Date: 2016-02-03
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All countries in the world are studying high-strength and high-toughness wrought magnesium alloys or adopting various technological means to improve the performance of wrought magnesium alloys. Using basic strengthening principles such as solid solution strengthening, precipitation strengthening, deformation strengthening and fine-grain strengthening can improve the strength and Plasticity, many researchers have also improved the plasticity of the alloy through equal angle rolling, asynchronous rolling, multi-pass bending treatment, pre-deformation and cryogenic treatment, but the process is complicated and the cost is high, which seriously restricts the alloy. application

Method used

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  • High-room-temperature-elongation wrought magnesium alloy and preparation method thereof
  • High-room-temperature-elongation wrought magnesium alloy and preparation method thereof
  • High-room-temperature-elongation wrought magnesium alloy and preparation method thereof

Examples

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Effect test

Embodiment 1

[0047] A wrought magnesium alloy with high elongation at room temperature, the mass fraction of each element in the wrought magnesium alloy is: Al: 1.8%, Mn: 0.15%, Ca: 0.3%, and the balance is magnesium.

[0048] The above-mentioned wrought magnesium alloy is made by sequentially adding Al, Mn, and Ca elements in the magnesium ingot, including the following steps:

[0049] 1). Dry all furnace materials and utensils;

[0050] 2). Put the magnesium ingot into the graphite crucible, put the graphite crucible into the box-type resistance furnace, sprinkle the No. 5 smelting covering agent for magnesium alloy smelting on the surface of the magnesium ingot, and blow argon gas (purity 99.9% ), to prevent massive oxidation and burning of magnesium alloys during smelting;

[0051] 3). After the magnesium ingot is melted and the melt temperature reaches 740°C, add the required mass of industrially pure Al (purity 99.9%) to the magnesium ingot melt, and stir evenly so that the mass fra...

Embodiment 2

[0055] A wrought magnesium alloy with high elongation at room temperature, the mass fraction of each element in the wrought magnesium alloy is: Al: 2%, Mn: 0.2%, Ca: 0.4%, and the balance is magnesium.

[0056] The wrought magnesium alloy is made by only sequentially adding Al, Mn, and Ca elements in the magnesium ingot, comprising the following steps:

[0057] 1). Dry all furnace materials and utensils;

[0058] 2). Put the magnesium ingot into the graphite crucible, put the graphite crucible into the box-type resistance furnace, sprinkle the No. 5 smelting covering agent for magnesium alloy smelting on the surface of the magnesium ingot, and blow argon gas (purity 99.9% ), to prevent a large amount of oxidation and combustion of magnesium alloys during smelting;

[0059] 3). After the magnesium ingot is melted and the melt temperature reaches 740°C, add the required mass of industrially pure Al (purity 99.9%) to the magnesium ingot melt, and stir evenly so that the mass fra...

Embodiment 3

[0063] A wrought magnesium alloy with high elongation at room temperature, the mass fraction of each element in the wrought magnesium alloy is: Al: 1.9%, Mn: 0.18%, Ca: 0.36%, and the balance is magnesium.

[0064] The above-mentioned wrought magnesium alloy is made by successively adding Al, Mn, and Ca elements in the magnesium ingot, comprising the following steps:

[0065] 1). Dry all furnace materials and utensils;

[0066] 2). Put the magnesium ingot into the graphite crucible, put the graphite crucible into the box-type resistance furnace, sprinkle the No. 5 smelting covering agent for magnesium alloy smelting on the surface of the magnesium ingot, and blow argon gas (purity 99.9% ), to prevent massive oxidation and burning of magnesium alloys during smelting;

[0067] 3). After the magnesium ingot is melted and the melt temperature reaches 740°C, add the required mass of industrially pure Al (purity 99.9%) to the magnesium ingot melt, and stir evenly so that the mass f...

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Abstract

The invention belongs to the field of non-ferrous metallurgy, specifically relates to wrought magnesium alloy and a preparation method thereof, discloses high-room-temperature-elongation wrought magnesium alloy and a preparation method thereof and provides high-room-temperature-elongation wrought magnesium system alloy. The high-room-temperature-elongation wrought magnesium alloy is prepared from not larger than 2% of Al, not larger than 0.2% of Mn, not larger than 0.4% of Ca and the balance magnesium, the room temperature elongation can reach 24%, and rolling, extruding, stamping and other plastic deforming can be easily completed on the basis. Meanwhile the method for preparing the alloy is provided, in other words, Al, Mn, Ca and other elements are added in pure magnesium ingots and are smelted into magnesium and aluminum alloy, and the wrought magnesium alloy prepared through the method is small and uniform in crystal particle and excellent in performance and can be used for the industries of aviation, aerospace, electronics, automobiles and the like.

Description

technical field [0001] The invention discloses a deformed magnesium alloy with high elongation at room temperature and a preparation method thereof, and relates to a magnesium alloy with excellent room temperature deformation characteristics and a preparation method of the magnesium alloy. The operation method is simple and convenient, easy to operate, and low in cost. It is easy to popularize and belongs to the field of nonferrous metallurgy. Background technique [0002] As the lightest metal structural material, magnesium alloy has the advantages of high specific strength, high specific stiffness, good shock resistance, excellent electromagnetic shielding performance, and good recyclability. It has broad applications in the fields of automobiles, portable tools, electronics, aerospace, etc. application prospects. my country has the most abundant magnesium resources in the world, and the development of magnesium alloy preparation and processing technology is of great sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C1/02
Inventor 仲志国卢志文赵亚忠李婧冯玉全屈重年
Owner NANYANG NORMAL UNIV
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