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High-performance easy-to-forge magnesium alloy material and preparation method thereof

A magnesium alloy, high-performance technology, applied in the field of high-performance and easy-forging magnesium alloy materials and preparation, can solve the problems of low strength, large distance, poor plastic deformation ability, etc., and achieve the effect of improving high temperature strength and creep resistance

Pending Publication Date: 2021-10-29
西安四方超轻材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is limited by the defects of poor plastic deformation ability and low strength. In terms of practical application, it is farther than aluminum alloy and steel materials. Especially, the high temperature performance drops too much, which seriously limits its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The high performance of the present invention includes the following composition: Magnesium elements: marginality, Y element: 7.5%, CD element: 0.6%, CE / LA element: 3.5%.

[0026] The preparation method is as follows:

[0027] 1) Follow the above-mentioned mating ratio, melting into a ingot, the smelting process is as follows: In the furnace passing into the protective gas: sf 6 + CO 2 The SF6 volume ratio is: 0.7%, the rest is CO 2 After the heating power is 15kW, after 13 minutes, heating power 25 kW is heated to the solution melt, and then heats up for 25 minutes during heating power, and then cools the heating power 12 kW to the cast temperature, cast temperature: 720 ° C, then pouring;

[0028] 2) ingot annealing: homogenization treatment of ingots: homogenization temperature: 380 ° C, time: 10h; water quenching;

[0029] 3) Forging:

[0030] Ingot heating time and temperature: 300mm in diameter, ingot heating temperature 380 ° C, to warm post-warm post-holding time;...

Embodiment 2

[0038] The high performance of the present invention comprises the following composition: Magnesium elements: marginality, Y element: 8.5%, CD element: 1.0%, CE / LA element: 3.6%.

[0039] The preparation method is as follows:

[0040] 1) Follow the above-mentioned mating ratio, melting into a ingot, the smelting process is as follows: In the furnace passing into the protective gas: sf 6 + CO 2 The SF6 volume ratio is: 0.9%, the rest is CO 2 After the heating power is 18 kW, the heating power is 30 kW heating to the solution melt, and then heats up for 30 minutes in the heating power, then the heating power is 18 kW to cool down for 20 minutes to the casting temperature, cast temperature: 730 ° C, then pouring;

[0041] 2) Annex annealing:

[0042] Homogenization treatment for ingots: homogenization temperature: 390 ° C, time: 10h; water quenching;

[0043] 3) Forging:

[0044] Ingot heating time and temperature: 300mm in diameter ingot heating temperature 390 ° C, to warm post-w...

Embodiment 3

[0052] The high performance of the present invention comprises the following composition: Magnesium element: marginality, Y element: 9.5%, CD element: 1.3%, CE / LA element: 3.8%.

[0053] The preparation method is as follows:

[0054] 1) Follow the above-mentioned mating ratio, melting into a ingot, the smelting process is as follows: In the furnace passing into the protective gas: sf 6 + CO 2 The SF6 volume ratio is: 0.3%, the rest is CO 2 After the heating power is 15 kW, after 20 minutes, the heating power is 20 kW heating to the solution melt, then heats up for 25 minutes during heating power, and then cools 10 minutes to the casting temperature, casting temperature: 740 ° C, then pouring;

[0055] 2) Annex annealing:

[0056] Homogenization treatment for ingots: homogenization temperature: 400 ° C, time: 10h; water quenching;

[0057] 3) Forging:

[0058] Ingot heating time and temperature: 300mm in diameter ingot heating temperature 400 ° C, to warm post-thermos, post-therm...

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PUM

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Abstract

The invention relates to a high-performance easy-to-forge magnesium alloy material and a preparation method. The magnesium alloy material comprises the following components in percentage by mass: 7.0%-10.0% of Y element, 0.5%-1.5% of Cd element, 3.0%-4.0% of Ce / La, and the balance of magnesium element. The magnesium alloy material is high in mechanical property and easy to forge, and the tensile strength can reach 500 MPa or above.

Description

Technical field [0001] The present invention relates to the field of alloy materials, and more particularly to a high performance easily forged magnesium alloy material and a preparation method. Background technique [0002] Magnesium alloys are known as "21st Century Green Structural Materials", have a wide range of application prospects in transportation, communication instruments, light industry, aviation, military and other fields. At present, the application of magnesium alloys in the automotive industry is rapidly increased by 15% to 20% per year, much higher than other metal materials. However, it is subject to defects that are poorly deformable and low in strength. The actual application is larger than the aluminum alloy and steel materials, especially high temperature performance, and severely limiting its application. Therefore, the magnesium alloy strength is improved, and the development of new high-strength magnesium alloy applications is a problem that must be solve...

Claims

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Application Information

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IPC IPC(8): C22C23/06C22F1/06B21J5/00C22C1/02
CPCC22C23/06C22C1/02C22F1/06B21J5/002
Inventor 王若冰范佳王瑞樊晓泽韩金强杜军伟
Owner 西安四方超轻材料有限公司
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