首页|A review on irradiated beryllium and beryllium alloy for fusion reactor application: Microstructure evolution, properties changes, and fabrication

A review on irradiated beryllium and beryllium alloy for fusion reactor application: Microstructure evolution, properties changes, and fabrication

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  • NETL
  • NSTL
  • Elsevier
Due to its unique nuclear properties, beryllium stands out as one of the candidate materials for the first wall and neutron multiplier in nuclear fusion reactors. This article provides an overview of the microstructural evolution and property changes in neutron and ion-irradiated beryllium and its alloys, based on both experimental research and computational modeling, as well as the fabrication of beryllium and its alloys. Changes in microstructure, physical and mechanical properties of the beryllium after irradiation are discussed, such as dislocation loops, bubbles, and tritium helium release behavior. Basic physical parameters of beryllium are collated, like displacement threshold energy, sputtering energy, vacancy formation energy, and elemental migration energy, which are the basis for irradiation damage calculation and understanding of experimental phenomena. Some issues that are still unclear or need further study have been identified, including the reason for the formation of hexagonal prism-shaped bubbles in beryllium under high-temperature irradiation, the mechanism behind the slightly higher peak release temperature of helium compared to tritium from beryllium after neutron irradiation, as well as the precise displacement threshold energy of beryllium, among other factors. This can shed light on the understanding of irradiation damage in beryllium and beryllium alloys.

Beryllium and beryllium alloyNeutron and ion irradiationSimulationMicrostructure (TEM)Irradiation swelling and hardeningHexagonal bubblesADVANCED NEUTRON MULTIPLIERSDEUTERIUM RETENTIONRADIATION-DAMAGETRITIUM RELEASECONTACT AREAHELIUMHYDROGENPEBBLESENERGYBE12TI

Wang, Tonghao、Liu, Pingping、Wang, Shujing、Wang, Shuai、Yi, Xiaoou、Han, Wentuo、Zhan, Qian、Wan, Farong

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University of Science and Technology Beijing School of Materials Science and Engineering

University of Science and Technology Beijing School of Materials Science and Engineering||Univ Sci & Technol Beijing

University of Science and Technology Beijing State Key Laboratory for Advanced Metals and Materials

2025

10.1016/j.fusengdes.2024.114780

Fusion engineering and design

Fusion engineering and design

SCI
ISSN：0920-3796
年,卷(期)：2025.211(Feb.)
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