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A dual-phase particle mixed reinforced magnesium alloy and its preparation method

A technology for strengthening magnesium alloys and magnesium alloys, applied in the field of magnesium alloy materials, can solve the problems of low absolute strength of magnesium alloys, magnesium alloys are not as extensive as aluminum alloys, and are easy to corrode.

Inactive Publication Date: 2015-08-05
武汉镁里镁科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the low absolute strength of magnesium alloys, poor deformation ability at room temperature, easy oxidation, combustion, and corrosion, etc., the wide application of magnesium alloys as structural materials is limited. At present, the application of magnesium alloys is far less than that of aluminum alloys.

Method used

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  • A dual-phase particle mixed reinforced magnesium alloy and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A two-phase particle mixed reinforced magnesium alloy, containing: Gd: 0.35%, Al: 2.9%, Zn: 2.1%, Ca: 0.92%, Sr: 1.07%, Nd: 0.41%, Zr: 0.48% in weight percentage , Sn: 0.88%, Be: 0.125%, Mn: 1.24%, Sb: 0.38%, Cu: 0.29%, SiC nanoparticles: 5%, boron nitride nanotube particles: 4%, the balance is Mg, SiC nano The diameter of the particles is less than 80nm, and the size of the boron nitride nanotube particles is 40 μm.

[0020] The preparation method of magnesium alloy comprises the following steps:

[0021] (1) Raw material preparation: raw material preparation is carried out according to weight percentage content, and described raw material is pure Mg ingot, Mg-Gd master alloy, pure Al ingot, pure Zn, Al-Ca master alloy, Al-Sr master alloy, Mg-Nd Master alloy, Mg-Zr master alloy, pure Sn, Al-Be master alloy, Al-Mn master alloy, pure Sb, Al-Cu master alloy, boron nitride nanotube particles;

[0022] Pretreatment of nano-SiC particles: a. Pour an appropriate amount of a...

Embodiment 2

[0030] A two-phase particle mixed reinforced magnesium alloy, containing: Gd: 0.38%, Al: 2.89%, Zn: 2.13%, Ca: 0.92%, Sr: 1.09%, Nd: 0.45%, Zr: 0.47% in weight percentage , Sn: 0.88%, Be: 0.13%, Mn: 1.2%, Sb: 0.28%, Cu: 0.29%, SiC nanoparticles: 4.5%, boron nitride nanotube particles: 5.5%, the balance is Mg, SiC nano The diameter of the particles is less than 100nm, and the size of the boron nitride nanotube particles is 90μm;

[0031] The preparation method of described magnesium alloy comprises the following steps:

[0032] (1) Raw material preparation: raw material preparation is carried out according to weight percentage content, and described raw material is pure Mg ingot, Mg-Gd master alloy, pure Al ingot, pure Zn, Al-Ca master alloy, Al-Sr master alloy, Mg-Nd Master alloy, Mg-Zr master alloy, pure Sn, Al-Be master alloy, Al-Mn master alloy, pure Sb, Al-Cu master alloy, boron nitride nanotube particles;

[0033] Pretreatment of nano-SiC particles: a. Pour an appropria...

Embodiment 3

[0041] A two-phase particle mixed reinforced magnesium alloy, containing: Gd: 0.38%, Al: 2.8%, Zn: 2.1%, Ca: 0.9%, Sr: 1.08%, Nd: 0.37%, Zr: 0.52% in weight percentage , Sn: 0.85%, Be: 0.125%, Mn: 1.26%, Sb: 0.23%, Cu: 0.28%, SiC nanoparticles: 6.5%, boron nitride nanotube particles: 6.5%, the balance is Mg, SiC nano The diameter of the particles is 60 nm, and the size of the boron nitride nanotube particles is 80 μm.

[0042] The preparation method of described magnesium alloy comprises the following steps:

[0043] (1) Raw material preparation: raw material preparation is carried out according to weight percentage content, and described raw material is pure Mg ingot, Mg-Gd master alloy, pure Al ingot, pure Zn, Al-Ca master alloy, Al-Sr master alloy, Mg-Nd Master alloy, Mg-Zr master alloy, pure Sn, Al-Be master alloy, Al-Mn master alloy, pure Sb, Al-Cu master alloy; boron nitride nanotube particles;

[0044] Pretreatment of nano-SiC particles: a. Pour an appropriate amount ...

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Abstract

The invention provides a double-phase particle mixed enhanced magnesium alloy, which comprises the following ingredients in percentage by weight: 0.35 to 0.45 percent of Gd, 2.7 to 3.3 percent of Al, 2.0 to 2.15 percent of Zn, 0.9 to 1.0 percent of Ca, 1.05 to 1.1 percent of Sr, 0.35 to 0.55 percent of Nd, 0.45 to 0.654 percent of Zr, 0.8 to 0.9 percent of Sn, 0.11 to 0.14 percent of Be, 1.1 to 1.3 percent of Mn, 0.2 to 0.4 percent of Sb, 0.25 to 0.31 percent of Cu, 4 to 10 percent of SiC nanometer particles, 1 to 15 percent of boron nitride nanotube particles and the balance of Mg, wherein the diameter of the SiC nanometer particles is smaller than 100nm, and the dimension of the boron nitride nanotube particles is smaller than 100mum. The invention also provides a preparing method of the alloy. The alloy has good mechanical property.

Description

technical field [0001] The invention belongs to the field of magnesium alloy materials, in particular to a two-phase particle mixed reinforced magnesium alloy and a preparation method thereof. Background technique [0002] The crystal structure of magnesium alloy is a close-packed hexagonal lattice, and its plastic deformation ability is not as good as that of aluminum and steel, which increases the difficulty of plastic processing of magnesium alloy and the cost of production and preparation. The design of alloy phases in magnesium alloys and the adoption of new deformation processes, etc., pay more attention to improving the plastic processing ability of magnesium alloys while ensuring a certain strength. [0003] Because magnesium alloy has low density, high specific stiffness and specific strength, and has excellent thermal conductivity, electromagnetic shielding performance, damping performance, machinability and shock absorption performance, and has a series of advanta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/02C22C32/00C22C1/03C22C1/10C22F1/06C21D8/02
Inventor 李佩瑾
Owner 武汉镁里镁科技有限公司