Anti-radiation metal layered composite material and preparation method thereof

By using composite rolling and heat treatment technology of Al-3.5Cu-2Mg-Ni alloy and tantalum tungsten alloy, metal layered composite materials with high mechanical properties and excellent radiation resistance were prepared, which solved the problems of low mechanical properties and radiation shielding efficiency of existing materials, and met the needs of aerospace vehicles and deep space exploration tasks.

CN119657633AActive Publication Date: 2025-03-21YINBANG CLAD MATERIAL
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Patent Information

Application Number
CN202411867810.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-21
Estimated Expiration
2044-12-18

AI Technical Summary

Technical Problem

The existing aluminum/tantalum layered composite panels have low room temperature mechanical properties, which cannot meet the needs of load-bearing structural parts of aerospace vehicles, and at the same time, the space radiation shielding efficiency is also low, which cannot meet the needs of deep space exploration tasks.

Method used

The radiation-resistant metal layered composite material was prepared by composite rolling method using Al-3.5Cu-2Mg-Ni alloy and tantalum tungsten alloy, and was subjected to homogenization treatment, hot rolling, annealing, solid solution treatment and aging treatment to improve the mechanical properties and radiation shielding properties of the material.

Benefits of technology

It significantly improves tensile strength, yield strength and shear strength, has excellent radiation resistance, and has more than 790% shielding and protection effect than single aluminum materials, meeting the needs of deep space exploration tasks.

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Abstract

The invention discloses an anti-radiation metal layered composite material and a preparation method thereof. The preparation method comprises the following steps: smelting and casting an Al-3. 5Cu-2Mg-Ni alloy cast ingot; the Al-3. 5Cu-2Mg-Ni alloy cast ingot is subjected to homogenization treatment, hot rolling and annealing; the annealed Al-3. 5Cu-2Mg-Ni alloy cast ingot and a tantalum-tungsten alloy plate are subjected to composite rolling, and the anti-radiation metal layered composite material is obtained; wherein the Al-3. 5Cu-2Mg-Ni alloy ingot comprises the following components in percentage by weight: less than or equal to 0.5% of Si, 0.2-0.6% of Fe, 3-3.8% of Cu, less than or equal to 0.05% of Mn, 1.8-2.4% of Mg, 0.8-1.2% of Ni, less than or equal to 0.3% of Zn, less than or equal to 0.5% of Ti, less than or equal to 0.05% of single content of other elements, less than or equal to 0.15% of total amount and the balance of aluminum. According to the Al-3. 5Cu-2Mg-Ni alloy disclosed by the invention, a certain amount of Cu, Mg and Ni are added into the Al-3. 5Cu-2Mg-Ni alloy, so that the resistance of the alloy to extranuclear electrons is improved, precipitated phases such as Al2Cu and Al2CuMg can be formed in the aging process, and the aging strengthening effect is improved.
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