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Sc-Al alloy foamed aluminum material and preparation method thereof

A technology of aluminum alloy foam and aluminum material, which is applied in the field of scandium-aluminum alloy aluminum foam material and its preparation, can solve the problems of poor cell size uniformity, affecting the application of foam aluminum, complicated preparation methods, etc., and achieves high yield and excellent shape Uniformity and good corrosion resistance

Inactive Publication Date: 2018-06-12
安徽省一鸣新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current preparation method of foamed aluminum material is complicated, and the cell size uniformity of the prepared foamed aluminum is poor, and the mechanical properties are poor. When encountering external force, it is easy to break, which seriously affects the application of foamed aluminum.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A scandium-aluminum alloy aluminum foam material, based on the total weight of the aluminum foam material as 1, the scandium-aluminum alloy aluminum foam material includes: magnesium 3.6wt%, lanthanum 0.086wt%, ytterbium 0.075wt%, niobium 0.025 wt%, iron 0.004wt%, scandium 0.1wt%, silicon 0.42wt%, carbon 0.016wt%, titanium 0.85wt%, platinum 0.01wt%, ruthenium 0.01wt%, rhodium 0.01wt%, nitrogen 0.16wt%, balance for aluminum.

[0022] The nitrogen element exists in the form of aluminum nitride, silicon nitride, and titanium nitride, and the ratio of the nitrogen element in the aluminum nitride, silicon nitride, and titanium nitride is 1:0.002:0.003.

[0023] The preparation method of described scandium-aluminum alloy aluminum foam material comprises the following steps:

[0024] (1) Heat the foaming agent in argon at a temperature of 480-500° C. for 30-40 minutes. The foaming agent is composed of titanium hydride, calcium carbonate and zirconium hydride in a mass ratio o...

Embodiment 2

[0029] A scandium-aluminum alloy foamed aluminum material, based on the total weight of the foamed aluminum material as 1, the scandium-aluminum alloy foamed aluminum material includes: magnesium 4.8wt%, erbium 0.03wt%, thulium 0.1wt%, cerium 0.05 wt%, iron 0.005wt%, scandium 0.08wt%, silicon 0.48wt%, carbon 0.015wt%, titanium 0.95wt%, silver 0.02wt%, platinum 0.01wt%, ruthenium 0.02wt%, nitrogen 0.15wt%, the balance for aluminum.

[0030] The nitrogen element exists in the form of aluminum nitride, silicon nitride, and titanium nitride, and the ratio of the nitrogen element among the aluminum nitride, silicon nitride, and titanium nitride is 1:0.001:0.002.

[0031] The preparation method of described scandium-aluminum alloy aluminum foam material comprises the following steps:

[0032] (1) Heat the foaming agent in argon at a temperature of 480-500° C. for 30-40 minutes. The foaming agent is composed of titanium hydride, calcium carbonate and zirconium hydride in a mass rati...

Embodiment 3

[0037]A scandium-aluminum alloy aluminum foam material, based on the total weight of the aluminum foam material being 1, the scandium-aluminum aluminum foam material comprises: magnesium 3.2wt%, yttrium 0.13wt%, lanthanum 0.05wt%, holmium 0.02 wt%, iron 0.003wt%, scandium 0.12wt%, silicon 0.36wt%, carbon 0.02wt%, titanium 0.63wt%, rhodium 0.008wt%, gold 0.002wt%, nitrogen 0.18wt%, and the balance is aluminum.

[0038] The nitrogen element exists in the form of aluminum nitride, silicon nitride, and titanium nitride, and the ratio of the nitrogen element in the aluminum nitride, silicon nitride, and titanium nitride is 1:0.001:0.003.

[0039] The preparation method of described scandium-aluminum alloy aluminum foam material comprises the following steps:

[0040] (1) Heat the foaming agent in argon at a temperature of 480-500° C. for 30-40 minutes. The foaming agent is composed of titanium hydride, calcium carbonate and zirconium hydride in a mass ratio of 1:0.6:0.75;

[0041]...

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Abstract

The invention relates to the technical field of foamed aluminum and preparation thereof, in particular to an Sc-Al alloy foamed aluminum material and a preparation method thereof. With the total weight of 1 of the foamed aluminum material as reference, the Sc-Al alloy foamed aluminum material comprises, by weight, 2.6-5.2% of Mg, 0.16-0.22% of rare earth element, 0.002-0.008% of Fe, 0.05-0.15% ofSc, 0.23-0.59% of Si, 0.01-0.026% of C, 0.56-1.21% of Ti, 0.01-0.05% of precious metal, 0.12-0.28% of N, and the balance Al; and the precious metal is composed of at least two of gold, silver, platinum, palladium, ruthenium and rhodium. According to the Sc-Al alloy foamed aluminum material and the preparation method thereof, microcrystalline metal element is added in aluminum alloy, matrix grainsof the foamed aluminum alloy is greatly refined, and through the refined grain strengthening action, while the toughness of the foamed aluminum alloy is not reduced, the strength of the foamed aluminum alloy is improved.

Description

technical field [0001] The invention relates to the technical field of foamed aluminum and its preparation, in particular to a scandium-aluminum alloy foamed aluminum material and a preparation method thereof. Background technique [0002] Aluminum foam is a kind of composite material with a large number of bubbles inside, and the bubbles are distributed in the continuous metal phase to form a pore structure. It organically combines the metal characteristics of the continuous phase aluminum and the pore characteristics of the dispersed phase pores, which makes it have the characteristics of light density, good energy absorption performance, unique acoustic and thermal performance, and excellent electromagnetic shielding. It has huge application potential in the fields of construction, rail transit, machinery manufacturing and aerospace. The current large-scale industrial production method for preparing closed-cell aluminum foam is the melt foaming method. The melt foaming ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/08C22F1/047
CPCC22C1/08C22C21/08C22F1/047C22C1/086
Inventor 徐礼庆
Owner 安徽省一鸣新材料科技有限公司
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