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Cerium lanthanum containing high-strength anti-corrosion die-casting magnesium alloy

A cerium-lanthanum, corrosion-resistant technology, applied in the field of high-strength corrosion-resistant die-casting magnesium alloys containing cerium-lanthanum, can solve the problems of waste of resources, environmental pollution, etc., and achieve the effect of improving corrosion resistance

Active Publication Date: 2009-07-29
白山市天安金属镁矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is a large backlog of low-cost cerium-lanthanum rare earths. If these rare earths cannot be fully utilized, it will be a great waste of resources and a great pollution to the environment.

Method used

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  • Cerium lanthanum containing high-strength anti-corrosion die-casting magnesium alloy
  • Cerium lanthanum containing high-strength anti-corrosion die-casting magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1 AZ91+CeLa (Ce=0.01%, La=1.0%) alloy

[0014] The composition and mass percentage of the high-strength corrosion-resistant die-casting magnesium alloy containing cerium-lanthanum rare earth are: aluminum: 9%, Zn: 0.9%, manganese: 0.2%, cerium: 0.01%, lanthanum: 1.0%, impurity element Fe≤0.02%, Cu≤0.002%, Si≤0.01%, Ni≤0.001%, and the balance is magnesium; AZ91 base alloy and magnesium-20% cerium-lanthanum master alloy are selected as raw materials, and the magnesium-20% cerium-lanthanum master alloy is made of magnesium. 80%, cerium lanthanum accounts for 20%; the cerium lanthanum raw material of the magnesium-20% cerium lanthanum master alloy is made of cerium lanthanum rare earth after separating Nd and Pr with cerium-rich mixed rare earth,

[0015] The composition and mass percentage of the cerium lanthanum rare earth are: 20%-80% of Ce, and 80%-20% of La.

[0016] Alloy properties are shown in Table 1 and Table 2.

[0017] Weigh the material according to t...

Embodiment 2

[0018] Example 2 AZ91+CeLa (Ce=0.6%, La=0.4%) alloy

[0019] The composition and mass percentage of the high-strength corrosion-resistant die-casting magnesium alloy containing cerium-lanthanum rare earth are: aluminum: 9%, Zn: 0.9%, manganese: 0.2%, cerium: 0.6%, lanthanum: 0.4%, impurity element Fe≤0.02%, Cu≤0.002%, Si≤0.01%, Ni≤0.001%, and the balance is magnesium; AZ91 base alloy and magnesium-20% cerium-lanthanum master alloy are selected as raw materials, and the magnesium-20% cerium-lanthanum master alloy is made of magnesium. 80%, cerium lanthanum accounts for 20%; the cerium lanthanum raw material of the magnesium-20% cerium lanthanum master alloy is made of cerium lanthanum rare earth after separating Nd and Pr with cerium-rich mixed rare earth, wherein the composition of cerium lanthanum rare earth And the mass percentage is: Ce is 20%-80%, La is 80%-20%.

[0020] Alloy properties are shown in Table 1 and Table 2.

[0021] Weigh the material according to the propo...

Embodiment 3

[0022] Example 3 AZ91+CeLa (Ce=0.2%, La=0.3%) alloy

[0023] The composition and mass percentage of the high-strength corrosion-resistant die-casting magnesium alloy containing cerium-lanthanum rare earth are: aluminum: 9%, Zn: 0.9%, manganese: 0.2%, cerium: 0.2%, lanthanum: 0.3%, impurity element Fe≤0.02%, Cu≤0.002%, Si≤0.01%, Ni≤0.001%, and the balance is magnesium; AZ91 base alloy and magnesium-20% cerium-lanthanum master alloy are selected as raw materials, and the magnesium-20% cerium-lanthanum master alloy is made of magnesium. 80%, cerium lanthanum accounts for 20%; the cerium lanthanum raw material of the magnesium-20% cerium lanthanum master alloy is made of cerium lanthanum rare earth after separating Nd and Pr with cerium-rich mixed rare earth, wherein the composition of cerium lanthanum rare earth And the mass percentage is: Ce is 20%-80%, La is 80%-20%.

[0024] Alloy properties are shown in Table 1 and Table 2.

[0025] Weigh the material according to the propo...

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Abstract

The invention relates to a high-strength corrosion-resistant die-casting magnesium alloy containing cerium and lanthanum. 0.01% to 1.5%, La is 0.01% to 1.5%, impurity elements Fe≤0.02%, Cu≤0.002%, Si≤0.01%, Ni≤0.001%, and the balance is magnesium. The alloying material used is cerium-lanthanum rare earth, and the remaining cerium-lanthanum rare earth is separated from the Nd and Pr in the common cerium-rich mixed rare earth. Currently, the rare earth material is cheap and has a large backlog in the market. The invention avoids the waste of rare earth resources, and the mechanical properties and plasticity of the alloy are better than those of the AZ91 alloy, and the corrosion resistance can be increased several times to dozens of times.

Description

technical field [0001] The invention relates to a high-strength corrosion-resistant die-casting magnesium alloy containing cerium and lanthanum, belonging to the field of metal materials. Background technique [0002] Magnesium alloy has the advantages of light specific gravity, high specific strength, good thermal conductivity, strong electromagnetic shielding ability, good vibration damping and easy recycling. The use of magnesium-aluminum light alloy instead of steel is the key to reducing weight, reducing fuel consumption and improving quality of current vehicles. measures and directions for development. With the light weight and high strengthening requirements put forward by modern industry, the demand for Mg—Al series magnesium alloys with excellent comprehensive properties is constantly increasing. This type of alloy represented by AZ91 has the advantages of excellent casting process performance, small hot cracking tendency, and low cost. It accounts for about 90% of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/02
Inventor 孟健张德平田政张景怀房大庆邱鑫唐定骧鲁化一杜海
Owner 白山市天安金属镁矿业有限公司
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