Anti-oxidation zero-coherence scattering alloy with BCC structure and preparation method of anti-oxidation zero-coherence scattering alloy

By preparing the TiTaAl alloy with BCC structure, the brittlement and oxidation problems of the sample storage container for neutron scattering experiments in high-temperature environments are solved, and high-quality data and efficient manufacturing are achieved to meet the material needs of high-temperature neutron scattering experiments.

CN120555853AActive Publication Date: 2025-08-29CHINA SPALLATION NEUTRON SOURCE SCI CENT +1
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Patent Information

Application Number
CN202510738966.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2025-08-29
Estimated Expiration
2045-06-04

AI Technical Summary

Technical Problem

The existing neutron scattering experiment sample storage containers have problems of embrittlement, oxidation and softening in high-temperature environments, which affects data quality and reusability. In addition, the existing alloy manufacturing processes have problems such as inaccurate component control, low production efficiency and high cost, making it difficult to meet the needs of high-temperature neutron scattering experiments.

Method used

A Ti37.07%, Ta 59.95%, Al 2.98% antioxidant zero-coherent scattering alloy with a BCC structure was developed. Through vacuum suspension smelting, alloying, homogenization and forging, TiTaAl alloy with a theoretical melting point of 1867℃ was prepared to manufacture sample storage containers and neutron beam windows to avoid interference from neutron diffraction peaks.

Benefits of technology

The quality of neutron scattering experiment data is significantly improved, the alloy maintains high strength and high plasticity at high temperatures, has excellent oxidation resistance, reduces costs, improves reusability and production efficiency, and meets the requirements of high-temperature neutron scattering experiments.

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Abstract

The invention relates to the field of neutron scattering experiment materials, and provides a neutron diffraction peak-free anti-oxidation zero-coherence scattering alloy material with a single-phase BCC structure and suitable for a high-temperature neutron scattering experiment and a preparation method of the neutron diffraction peak-free anti-oxidation zero-coherence scattering alloy material. The alloy contains 37.07% of Ti, 59.95% of Ta and 2.98% of Al, the theoretical melting point is 1867 DEG C, no neutron diffraction peak exists, and the alloy can be used for preparing a sample containing container and a neutron beam window. The TiTaAl alloy has no neutron diffraction peak in an X-ray and neutron diffraction pattern, data interference can be avoided, and the quality of experimental data is improved. The TiZr alloy keeps high strength and high plasticity at a high temperature, and is suitable for a high-temperature experiment environment of 800 DEG C or above. After the material is oxidized for 80 hours in an atmospheric environment of 1000 DEG C, the oxidation weight gain is only 43mg / cm < 2 >, the oxidation resistance is excellent, and the reusability and economical efficiency of the material are improved; according to the method, accurate component control and efficient manufacturing are achieved by optimizing the steps of burdening, smelting, alloying, homogenizing treatment, forging and the like, the problems that an existing process is inaccurate in component control, low in efficiency, high in cost and the like are solved, and the product quality and the production efficiency are improved.
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