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Rare earth and magnesium alloy

A rare earth magnesium and magnesium alloy technology, applied in the field of rare earth magnesium alloys, can solve the problems of poor corrosion resistance, decreased high temperature strength and creep strength, limited application scope of magnesium alloys, etc., and achieve the effect of improving mechanical properties and reducing corrosion rate.

Inactive Publication Date: 2014-03-19
简玉君
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  • Summary
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AI Technical Summary

Problems solved by technology

[0003] However, the shortcomings of magnesium alloys are also very obvious, usually above 120 ℃, its high temperature strength and creep strength will drop significantly, which seriously limits the application range of magnesium alloys
In addition, the poor corrosion resistance of magnesium alloys also greatly restricts its wide application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of rare earth magnesium alloy, the raw material and weight percentage of rare earth magnesium alloy are:

[0017] AZ91D magnesium alloy 98%; yttrium 1.2%; cerium 0.8%; the weight percentage of each component in AZ91D magnesium alloy is: aluminum 8.5%, zinc 0.45%, manganese 0.17%, silicon 0.01%, copper 0.015%, nickel 0%, iron 0.001 %, the balance being magnesium.

Embodiment 2

[0019] A kind of rare earth magnesium alloy, the raw material and weight percentage of rare earth magnesium alloy are:

[0020] AZ91D magnesium alloy 99%; yttrium 0.5%; cerium 0.5%; the weight percentage of each component in AZ91D magnesium alloy is: aluminum 9.5%, zinc 0.9%, manganese 0.4%, silicon 0.05%, copper 0.025%, nickel 0.001%, iron 0.004 %, the balance being magnesium.

Embodiment 3

[0022] A kind of rare earth magnesium alloy, the raw material and weight percentage of rare earth magnesium alloy are:

[0023] AZ91D magnesium alloy 98.5%; yttrium 1%; cerium 0.5%; the weight percentage of each component in AZ91D magnesium alloy is: aluminum 9.2%, zinc 0.5%, manganese 0.35%, silicon 0.04%, copper 0.02%, nickel 0.001%, iron 0.002 %, the balance being magnesium.

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Abstract

The invention provides a rare earth and magnesium alloy. The rare earth and magnesium alloy is composed of the following raw materials in percentage by weight: 98 to 99% of AZ91D magnesium alloy, 0.5 to 1.2% of yttrium, and 0.5 to 0.8% of cerium. A little amount of yttrium element and cerium element is added, so the corrosion speed of magnesium alloy is prominently reduced, and the mechanical property of magnesium alloy is improved.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to a rare earth magnesium alloy. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. It is the lightest material in structural engineering. It has excellent characteristics of small specific gravity, high rigidity, good vibration damping, good resistance to electromagnetic interference, good heat dissipation, and good texture. , are widely used in aerospace, transportation, chemical industry, rocket and other fields. [0003] However, the disadvantages of magnesium alloys are also very obvious, usually above 120 ℃, its high temperature strength and creep strength will be greatly reduced, which seriously limits the application range of magnesium alloys. In addition, the poor corrosion resistance of magnesium alloys also greatly restricts its wide application. However, rare earth elements in cast magnesium alloys have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02
Inventor 简玉君
Owner 简玉君
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