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A kind of high-strength magnesium alloy and preparation method thereof

A magnesium alloy, high-strength technology, applied in the field of magnesium alloy materials, can solve the problems of low absolute strength, high cost, poor ductility, etc., and achieve the effect of high mechanical properties and high strength

Active Publication Date: 2016-08-17
SHANDONG JINERTAI PRECISION DIE CASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although there are many series of magnesium alloys at present, the influence of factors such as high cost, low absolute strength and poor ductility has not been industrialized and widely promoted. Therefore, it is necessary to further research and develop new heat-resistant magnesium alloys. alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-strength magnesium alloy, according to weight percentage content: Al: 7.2%, Cu: 2.1%, Cs: 2.1%, Ta: 0.3%, Pr: 0.6%, Er: 1.1%, Cr: 2.1%, Be: 1.1%, Re: 0.5%, Ba: 0.4%, Co: 0.7%, Ho: 1.0%, Ca: 3.2%, the balance is Mg, and the preparation method includes the following steps:

[0019] (1) Raw material preparation: prepare raw materials according to the weight percentage content, and the raw materials are pure Mg ingots, Mg-Al master alloys, pure Al ingots, pure Cu, Al-Cs master alloys, Al-Ta master alloys, Al-Pr master alloys Master alloy, Mg-Er master alloy, Mg-Cr master alloy, pure Be, Al-Re master alloy, Al-Ba master alloy, pure Co, Ho-Ca master alloy;

[0020] (2) Smelting: heat the resistance furnace to 365°C, first add pure Mg ingots into the melting furnace, and at the same time introduce a gas protective atmosphere, continue to heat the resistance furnace, and after the pure magnesium ingots are completely melted, add Mg-Al intermediate Alloy, pure Al ingot, ...

Embodiment 2

[0027] A high-strength magnesium alloy, according to weight percentage content: Al: 7.7%, Cu: 2.6%, Cs: 2.7%, Ta: 0.4%, Pr: 0.7%, Er: 1.2%, Cr: 2.4%, Be: 1.7%, Re: 0.6%, Ba: 0.5%, Co: 0.8%, Ho: 1..4%, Ca: 3.3%, the balance is Mg, and its preparation method includes the following steps:

[0028] (1) Raw material preparation: prepare raw materials according to the weight percentage content, and the raw materials are pure Mg ingot, Mg-Al master alloy, pure Al ingot, pure Cu, Al-Cs master alloy, Al-Ta master alloy, Al-Pr Master alloy, Mg-Er master alloy, Mg-Cr master alloy, pure Be, Al-Re master alloy, Al-Ba master alloy, pure Co, Ho-Ca master alloy;

[0029] (2) Smelting: heat the resistance furnace to 365°C, first add pure Mg ingots into the melting furnace, and at the same time introduce a gas protective atmosphere, continue to heat the resistance furnace, after the pure magnesium ingots are completely melted, add Mg-Al intermediate Alloy, pure Al ingot, pure Cu, Al- Cs master...

Embodiment 3

[0036]A high-strength magnesium alloy, according to weight percentage content: Al: 8.2%, Cu: 3.1%, Cs: 2.3%, Ta: 0.5%, Pr: 0.8%, Er: 1.3%, Cr: 2.7%, Be: 2.3%, Re: 0.7%, Ba: 0.6%, Co: 0.9%, Ho: 1.8%, Ca: 3.4%, the balance is Mg, and the preparation method includes the following steps:

[0037] (1) Raw material preparation: prepare raw materials according to the weight percentage content, and the raw materials are pure Mg ingot, Mg-Al master alloy, pure Al ingot, pure Cu, Al-Cs master alloy, Al-Ta master alloy, Al-Pr Master alloy, Mg-Er master alloy, Mg-Cr master alloy, pure Be, Al-Re master alloy, Al-Ba master alloy, pure Co, Ho-Ca master alloy;

[0038] (2) Smelting: heat the resistance furnace to 365°C, first add pure Mg ingots into the melting furnace, and at the same time introduce a gas protective atmosphere, continue to heat the resistance furnace, after the pure magnesium ingots are completely melted, add Mg-Al intermediate Alloy, pure Al ingot, pure Cu, Al- Cs master a...

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Abstract

The invention provides a high-strength magnesium alloy, which contains: Al: 7.2-8.2%, Cu: 2.1-3.1%, Cs: 2.1-2.3%, Ta: 0.3-0.5%, Pr: 0.6-0.8 %, Er: 1.1‑1.3%, Cr: 2.1‑2.7%, Be: 1.1‑2.3%, Re: 0.5‑0.7%, Ba: 0.4‑0.6%, Co: 0.7‑0.9%, Ho: 1.0‑1.8% , Ca: 3.2‑3.4%, and the balance is Mg. The invention also proposes a preparation method of the alloy. The alloy has good mechanical properties.

Description

technical field [0001] The invention belongs to the field of magnesium alloy materials, in particular to a high-strength magnesium alloy and a preparation method thereof. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. Its characteristics are: low density (about 1.8g / cm3 magnesium alloy), high specific strength, large specific elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, and corrosion resistance to organic substances and alkalis good. The main alloying elements are aluminum, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium. Because of its light specific gravity, high specific strength and specific stiffness, strong damping and vibration reduction and drying ability, excellent liquid forming performance and easy recycling, it is known as the "green structural material" in the 21st century. It has broad application prospects in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/02C22C1/03
Inventor 王艳
Owner SHANDONG JINERTAI PRECISION DIE CASTING CO LTD
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