A kind of magnesium alloy with high plastic deformation at room temperature and preparation method thereof

A wrought magnesium alloy and high plasticity technology, applied in the field of magnesium alloy materials and metal materials, can solve the problems of poor ductility at room temperature and poor formability of wrought magnesium alloys, so as to improve the plastic forming ability, improve the ductility at room temperature, and inhibit the formation of cracks. Effect

Active Publication Date: 2016-03-09
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 purpose of the present invention is to provide a magnesium alloy with high plasticity, especially high plastic deformation at room temperature, aiming at the technical problems of poor room temperature plasticity and poor processing formability of deformed magnesium alloys in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Drying: Dry the prepared raw materials: pure magnesium, pure aluminum, pure zinc (purity ≥99.9wt%), pure red phosphorus and aluminum-manganese intermediate alloy, where Mg, Al, Zn and P are in 100 It is dried at ℃, while the AlMn master alloy is dried at 150℃;

[0028] Among them, the above-mentioned raw materials contain mass percentage: Al: 5.95%, Zn: 1.05%, Mn: 0.30%, P: 0.25.

[0029] Melting: Throughout the smelting process, continue to pass SF into the resistance crucible 6 To protect the gas, 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, and then put in the weighed Mg, Al, Zn metal ingots, and continue heating until Mg After the Al and Zn metal ingots are all melted, add the weighed Al-Mn master alloy and sprinkle the covering agent RJ-6 evenly at 680℃; after the Al-Mn master alloy is completely melted, Add 0.25wt% of non-metallic phosphorus at 700℃, and sprinkle the cov...

Embodiment 2

[0031] The raw materials and the preparation method are basically the same as in Example 1, except that the addition amount of phosphorus is 0.35wt% to obtain magnesium alloy cast rod B2. The chemical composition test results of the obtained magnesium alloy are shown in Table 1. Strength performance The test results are shown in Table 2.

Embodiment 3

[0033] The raw materials and the preparation method are basically the same as those in Example 1, except that the addition amount of phosphorus is 0.45wt% to obtain magnesium alloy cast rod B3. The chemical composition test results of the obtained magnesium alloy are shown in Table 1. Strength performance 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, and more specifically, to a room temperature high plastic deformation magnesium alloy and a preparation method thereof. Background technique [0002] Magnesium and magnesium alloys are lightweight materials in the 21st century. Because of their light specific gravity, high specific strength and specific rigidity, magnesium alloys have good damping, thermal conductivity, machinability and castability, and also have strong electromagnetic shielding capabilities and rich resources. With a series of advantages such as easy recycling, its development and application have attracted more and more attention, becoming one of the "youngest" metal structural materials. It is applied to structural parts in aerospace, automotive, transportation and other fields, which can significantly reduce weight and save fuel consumption. [0003] Traditi...

Claims

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Application Information

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Patent Type & Authority Patents(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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