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Magnesium alloy wire doped with graphene and preparing method thereof

A graphene and magnesium alloy technology, applied in the field of alloy materials, can solve the problems of insufficient strength, hardness, and fire resistance, and can achieve excellent specific strength, improved stability, cutting performance and usability.

Inactive Publication Date: 2017-02-01
冯军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current characteristics of magnesium alloys still cannot meet the high-end fields such as military industry and aerospace, mainly due to insufficient strength, hardness and fire resistance.

Method used

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  • Magnesium alloy wire doped with graphene and preparing method thereof
  • Magnesium alloy wire doped with graphene and preparing method thereof
  • Magnesium alloy wire doped with graphene and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Reclaimer:

[0056] Take materials according to the following percentages: the content of graphene is 0.15%, the content of Al is 8%, the content of Ti is 5%, the content of Cr is 4%, the content of Ni is 0.1%, the content of Ga is 4%, the content of Sm The content of Yb is 0.1%, the content of Yb is 4%, and the balance is magnesium.

[0057] mix:

[0058] Heat the alloy powder to 700-750°C until it melts, add graphene to it, and stir evenly.

[0059] Melting and casting:

[0060] Heat the mixture to 850-900°C (the heating rate is controlled at 10-20°C / min), keep it warm for 2 hours, carry out smelting, and then cast it into a rod of about Φ15mm.

[0061] Repeated drawing and annealing:

[0062] Cold-draw the bar to an alloy wire of about Φ10mm, then anneal for the first time at 600-800°C (the heating rate is controlled at 10-15°C / min), keep it warm for about 10 minutes, and then draw the alloy wire for the second time to The alloy wire of about Φ3mm is then anneal...

Embodiment 2-5

[0064] The difference between embodiment 2-5 and embodiment 1 is only that the doping amount of graphene is different, is respectively 0.2%, 0.6%, 1%, 4%, the percentage content of other metal elements except magnesium is the same, and magnesium is the remainder. quantity.

[0065] The properties of the magnesium alloy wires of Examples 1 to 5 were tested and compared with the magnesium alloy AZ91D, as shown in Table 1.

[0066] Table 1

[0067]

[0068]

Embodiment 6

[0070] Reclaimer:

[0071] According to the following percentages: the content of graphene is 4%, the content of Al is 6%, the content of Ti is 7%, the content of Cr is 0.1%, the content of Ni is 4%, the content of Ga is 0.1%, the content of Sm The content of Yb is 4%, the content of Yb is 0.1%, and the balance is magnesium.

[0072] mix:

[0073] Heat the alloy powder to 750-800°C until it melts, add graphene to it, and stir evenly.

[0074] Melting and casting:

[0075] Heat the mixture to 900-1000°C (the heating rate is controlled at 15-20°C / min), keep it warm for 2 hours, melt it, and then cast it into a rod of about Φ15mm.

[0076] Repeated drawing and annealing:

[0077] Cold-draw the bar to an alloy wire of about Φ10mm, then anneal for the first time at 700-800°C (the heating rate is controlled at 10-15°C / min), keep it warm for about 1 hour, and then draw the alloy wire for the second time to The alloy wire of about Φ3mm is then annealed for the second time at 500-...

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Abstract

The invention provides a magnesium alloy wire doped with graphene and a preparing method thereof. The magnesium alloy wire doped with the grapheme is a Mg-Graphene-Al-Ti-Cr-Ni-Ga-Sm-Yb alloy. The magnesium alloy doped with the graphene comprises, by mass, 0.15%-4% of graphene, 6%-8% of Al, 5%-7% of Ti, 0.1%-4% of Cr, 0.1%-4% of Ni, 0.1%-4% of Ga, 0.1%-4% of Sm, 0.1%-4% of Yb and the balance magnesium. The magnesium alloy wire is modified through the graphene, hardness, strength and fire resistance are improved substantially, and the magnesium alloy wire can be applicable to manufacturing of parts in the high-end field of war industry, aerospace and the like.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to a graphene-doped magnesium alloy wire and a preparation method thereof. Background technique [0002] Magnesium alloy is characterized by: low density (1.8g / cm 3 Magnesium alloy or so), high specific strength, large specific elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, good corrosion resistance to organic matter and alkali, the main alloying elements are aluminum, zinc, manganese , cerium, thorium and a small amount of zirconium or cadmium, or rare earth elements. Magnesium-aluminum alloys are currently the most widely used, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. Magnesium alloys are mainly used in aviation, aerospace, transportation, chemical, rocket and other industrial sectors. [0003] Due to the above advantages, magnesium alloy wire is widely used in cables, h...

Claims

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Application Information

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IPC IPC(8): C22C23/00C22C23/02C22F1/06C22C1/10
CPCC22C1/1026C22C1/1036C22C23/00C22C23/02C22F1/06
Inventor 冯军冯雷
Owner 冯军
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