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Room-temperature high-plasticity wrought magnesium alloy and preparation method thereof

A deformed magnesium alloy, high plasticity technology, applied in the field of magnesium alloy materials and metal materials, can solve the problems of poor processing and forming performance, poor plasticity of deformed magnesium alloy at room temperature, etc., to improve plastic forming ability, improve compression ductility, and increase room temperature plastic effect

Active Publication Date: 2014-06-18
SUZHOU KAI YOU ELECTRONICS SCI & TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the technical problems of poor room temperature plasticity and poor processing and forming performance of the deformed magnesium alloys in the above-mentioned prior art, and to provide a high plasticity, Especially magnesium alloys with high plastic deformation at room temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Drying: Dry the prepared raw materials: pure magnesium, pure aluminum, pure zinc (purity ≥ 99.9wt%), pure red phosphorus and aluminum-manganese master alloy, among which Mg, Al, Zn, P are at 100 ℃, while the AlMn master alloy is dried at 150 ℃;

[0029] Wherein the above raw materials contain mass percentage: Al: 5.95%, Zn: 1.05%, Mn: 0.30%, P: 0.25.

[0030] Melting: During the whole melting process, SF is continuously fed into the resistance crucible 6 Gas protection, first preheat the resistance crucible to 200 ° C, sprinkle an appropriate amount of bottom flux RJ-1 on the side wall and bottom of the crucible, then put in the weighed Mg, Al, Zn metal ingots, continue heating, wait for Mg , Al, and Zn metal ingots are all melted, add the weighed Al-Mn master alloy at a temperature of 680°C and sprinkle the covering agent RJ-6 evenly from time to time; after the Al-Mn master alloy is completely melted, then Add 0.25wt% non-metallic phosphorus at a temperature of 700°...

Embodiment 2

[0032] The raw materials and preparation method are basically the same as in Example 1, except that the addition of phosphorus is 0.35wt%, and the magnesium alloy cast rod B2 is obtained. The chemical composition detection results of the obtained magnesium alloy are shown in Table 1, and the strength performance The test results are shown in Table 2.

Embodiment 3

[0034] The raw materials and preparation method are basically the same as in Example 1, the only difference is that the addition of phosphorus is 0.45wt%, and the magnesium alloy cast rod B3 is obtained. The chemical composition detection results of the obtained magnesium alloy are shown in Table 1, and the strength properties The test results are shown in Table 2.

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Abstract

The invention provides room-temperature high-plasticity wrought magnesium alloy and a preparation method thereof. The magnesium alloy comprises the following components by weight percent: 5.5wt%-7.3wt% of Al, 0.40wt%-1.50wt% of Zn, 0.15wt%-0.50wt% of Mn, 0.05wt%-1.0wt% of P and the balance being Mg and inevitable impurities, wherein the inevitable impurities comprise the following components: not more than 0.05wt% of Si, not more than 0.004wt% of Fe, not more than 0.004wt% of Cu and not more than 0.002wt% of Ni. According to the magnesium alloy, a nonmetal element P is added in an existing magnesium alloy smelting process, a stable small grain structure is obtained under the action of the nonmetal element P, the room-temperature plasticity is improved, and the room-temperature processing and using requirements of finished products or semi-finished products can be met.

Description

technical field [0001] The invention belongs to the field of metal materials. The invention relates to the technical field of magnesium alloy materials, in particular to a magnesium alloy with high plastic deformation at room temperature and a preparation method thereof. Background technique [0002] Magnesium and magnesium alloys are lightweight materials in the 21st century. Magnesium alloys have light specific gravity, high specific strength and specific stiffness, good damping, thermal conductivity, machinability and castability, and also have strong electromagnetic shielding ability and rich resources. With a series of advantages such as easy recycling and easy recycling, its development and application have received more and more attention, and it has become one of the "youngest" metal structural materials. It is applied to structural parts in aerospace, automobile, transportation and other fields, which can significantly reduce weight and save fuel consumption. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C1/03C22C1/06
Inventor 邓邦惠余云
Owner SUZHOU KAI YOU ELECTRONICS SCI & TECH LTD
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