一种提升铍合金中优质相含量的方法

By strictly controlling the composition and process parameters of beryllium alloys and employing steps such as ball milling, annealing, and sintering, beryllium alloys with high-quality phase content were prepared. This solved the embrittlement problem of beryllium alloys under high-energy neutron irradiation, improved neutron multiplication performance and mechanical properties, and extended the service life of beryllium alloys.

CN122400565APending Publication Date: 2026-07-17CNMC NINGXIA ORIENT GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CNMC NINGXIA ORIENT GRP
Filing Date
2026-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, beryllium alloy microspheres are prone to helium embrittlement and swelling under high-energy neutron irradiation, which affects the safety and service life of fusion reactors. At the same time, the low content of high-quality phases in beryllium alloys leads to a decrease in neutron yield and makes it impossible to effectively achieve tritium self-sufficiency.

Method used

By precisely controlling the atomic ratio of beryllium powder and X powder, and combining ball milling pretreatment, annealing treatment, segmented precise temperature-controlled sintering, ultra-fast cooling and low-temperature annealing processes, beryllium alloys with high quality phase content are prepared. The process includes steps such as ball milling, mixing, granulation, injection molding, debinding, sintering and low-temperature annealing.

Benefits of technology

It significantly improves the microstructure uniformity and density of beryllium alloys, enhances their mechanical properties and structural stability, extends their service life, and improves neutron multiplication performance through high-quality phase content, thus meeting the requirements of fusion reactors.

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Abstract

本发明涉及一种提升铍合金中优质相含量的方法,属于铍合金制备技术领域,用于解决现有方法制备铍合金中优质相含量低的问题。本发明的方法包括:按Be与X的原子比12.1~13.3:1称量铍粉和X粉,其中X为Ti、W、V或Zr中的至少一种;将铍粉和X粉混合粉末进行球磨预处理;将预处理后的混合粉末进行退火处理;将退火处理后的混合粉末与粘结剂进行密炼、造粒,得到喂料;采用注射成形工艺制备生坯;通过脱脂工艺去除生坯中的粘结剂,获得素坯;在保护气氛下对素坯进行烧结,烧结温度为845~1185℃,保温4~6h;保温后采用超快冷,将烧结体冷却至250℃以下;对冷却后的材料进行低温退火处理,得到高优质相含量的铍合金。本发明的方法能得到高优质相含量的铍合金。
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