High-strength magnesium alloy

A magnesium alloy, high-strength technology, applied in the field of magnesium alloys, can solve the problems of restricting widespread use, magnesium alloys are easy to be corroded, and aggravated corrosion, so as to improve flame retardancy, improve thermal conductivity and strength, and avoid oxidative combustion Effect

Active Publication Date: 2020-01-14
东莞市腾美金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The application of magnesium alloys mainly has the following problems: one is that the strength and

Method used

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  • High-strength magnesium alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-strength magnesium alloy, comprising raw materials in the following weight percentages:

[0029]

[0030]

[0031] The high-strength magnesium alloy is prepared by the following method:

[0032] 1) According to weight percentage, pure Mg, pure C, pure Bi, CaCl 2 , SiO 2 , Mg-Nd master alloy, Mg-Ti-Sn master alloy, Ti-Al master alloy and Mg-Mn-Zr master alloy are used as raw materials for batching; Mg in pure Mg, Mg in Mg-Nd master alloy, Mg- The weight ratio of Mg in the Ti-Sn master alloy to Mg in the Mg-Mn-Zr master alloy is 0.8:0.4:0.1:0.6; the weight ratio of Ti in the Ti-Al master alloy to that in the Mg-Ti-Sn master alloy is 0.8:0.4;

[0033] 2) Put the pure Mg ingot into the refining equipment, heat it to 650°C under the condition of protective gas to melt until it is completely melted, add the refining agent and continue the heat preservation and melting for 10 minutes to obtain the molten slurry A, and then sequentially add pure Mg, pure C, Add M...

Embodiment 2

[0045] A high-strength magnesium alloy, comprising raw materials in the following weight percentages:

[0046]

[0047] The high-strength magnesium alloy is prepared by the following method:

[0048] 1) According to weight percentage, pure Mg, pure C, pure Bi, CaCl 2 , SiO 2 , Mg-Nd master alloy, Mg-Ti-Sn master alloy, Ti-Al master alloy and Mg-Mn-Zr master alloy are used as raw materials for batching; Mg in pure Mg, Mg in Mg-Nd master alloy, Mg- The weight ratio of Mg in the Ti-Sn master alloy to Mg in the Mg-Mn-Zr master alloy is 0.9:0.5:0.2:0.7; the weight ratio of Ti in the Ti-Al master alloy to that in the Mg-Ti-Sn master alloy is 0.9:0.5;

[0049] 2) Put the pure Mg ingot into the refining equipment, heat it to 675°C under the condition of protective gas to melt until it is completely melted, add the refining agent and continue the heat preservation and melting for 13 minutes to obtain the molten slurry A, and then sequentially add pure Mg, pure C, Add Mg-Nd maste...

Embodiment 3

[0061] A high-strength magnesium alloy, comprising raw materials in the following weight percentages:

[0062]

[0063] The high-strength magnesium alloy is prepared by the following method:

[0064] 1) According to weight percentage, pure Mg, pure C, pure Bi, CaCl 2 , SiO 2 , Mg-Nd master alloy, Mg-Ti-Sn master alloy, Ti-Al master alloy and Mg-Mn-Zr master alloy are used as raw materials for batching; Mg in pure Mg, Mg in Mg-Nd master alloy, Mg- The weight ratio of Mg in the Ti-Sn master alloy to Mg in the Mg-Mn-Zr master alloy is 1.0:0.6:0.3:0.8; the weight ratio of Ti in the Ti-Al master alloy to that in the Mg-Ti-Sn master alloy is 1.0:0.6;

[0065] 2) Put the pure Mg ingot into the refining equipment, heat it to 700°C under the condition of protective gas to melt until it is completely melted, add the refining agent and continue the heat preservation and melting for 15 minutes to obtain the molten slurry A, and then sequentially add pure Mg, pure C, Add Mg-Nd maste...

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Abstract

The invention relates to the technical field of magnesium alloys, and particularly relates to a high-strength magnesium alloy. The high-strength magnesium alloy comprises the following feedstocks, inpercentages by weight, 0.1%-1% C, 2%-4% Ti, 4%-8% Si, 1.2%-2.2% Ca, 2.3%-3.8% Sn, 1%-2% Nd, 0.5%-1.0% Bi, 6%-10% Al, 0.5%-1.0% Zr, 1.0%-1.5% Mn, 4%-8% graphene, and the balance Mg and unavoidable impurities. According to the alloy, the flame retardance, the tensile strength and the yield strength of the magnesium alloy are improved by reasonably matching different elements and an intermediate alloy, and the alloy also has good room temperature and high-temperature mechanical properties, and the high-temperature creep resistance, the fatigue resistance and the heat storage resistance of the alloy are improved; in addition, the added graphene is a two-dimensional material with a single atomic layer thickness composed of SP2 hybrid carbon atoms, and the addition of the two-dimensional material can further improve the heat conduction performance and strength of the magnesium alloy.

Description

technical field [0001] The invention relates to the technical field of magnesium alloys, in particular to a high-strength magnesium alloy. Background technique [0002] In the existing metal structure material system, magnesium alloy has high specific strength and specific stiffness, excellent casting performance and high damping and anti-vibration performance, easy to recycle, and has environmental protection characteristics, so it is widely used in aerospace, electronic communication and automobile industries. And other industries have a very broad application prospects, has become one of the most potential metal structure materials. [0003] The application of magnesium alloys mainly has the following problems: one is that the strength and toughness of magnesium alloys is not ideal, which limits its wide use; Magnesium alloys are widely used. Contents of the invention [0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the p...

Claims

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Application Information

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IPC IPC(8): C22C23/00C22C23/02C22C1/10C22C1/06C22F1/06
CPCC22C23/00C22C23/02C22C1/1036C22C1/06C22F1/06C22C1/1047
Inventor 孙家谦
Owner 东莞市腾美金属科技有限公司
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