Comparative analysis of high-temperature corrosion processes of beryllides of different compositions

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Fusion Engineering and Design Pub Date : 2025-06-19 DOI:10.1016/j.fusengdes.2025.115283

Timur Kulsartov , Inesh Kenzhina , Kuanysh Samarkhanov , Yergazy Kenzhin , Yuriy Gordienko , Yuriy Ponkratov , Yevgeniy Chikhray , Vadim Bochkov , Zhanna Zaurbekova , Alexander Yelishenkov , Meiram Begentayev , Saulet Askerbekov , Sergey Udartsev , Mikhail Podoinikov

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引用次数: 0

Abstract

Beryllium intermetallic compounds, such as titanium beryllide (Be₁₂Ti), chromium beryllide (Be₁₂Cr), and zirconium beryllide (Be₂Zr), exhibit exceptional physicochemical properties, making them promising materials for diverse scientific and energy applications. Among them, Be₁₂Ti is the leading candidate for neutron multiplier use in future European projects employing the Helium Cooled Pebble Bed (HCPB) concept and solid blanket systems of ITER and DEMO-type reactors, due to its high melting point, radiation-induced swelling, low activation, and excellent corrosion resistance. To broaden the scope of material selection, exploring alternative compounds has gained importance. Having properties similar to Be₁₂Ti, chromium beryllide Be₁₂Cr demonstrates potential as a possible option, including high thermal and radiation resistance, although its corrosion resistance in vapor-gas medium requires further research. Beyond fusion applications, beryllides have potential in other domains. For example, Be₂Zr exhibits remarkable properties for hydrogen energy, such as forming stable hydride phases, making it an excellent candidate for hydrogen storage systems. These investigations are especially relevant for advancing hydrogen and fusion energy technologies in Kazakhstan. Ulba Metallurgical Plant JSC, a leader in beryllium material production, synthesizes not only Be₁₂Ti, Be₁₂Cr and Be₂Zr, but also less studied beryllides.

This study performs a comparative analysis of high-temperature corrosion in beryllides with varying compositions. A series of experiments were conducted to investigate the corrosion mechanisms under vapor-gas mediums with different isotopic compositions using non-isothermal heating across a wide temperature range. Key features of beryllide corrosion were revealed, including time-dependent changes in sample mass and gas-phase composition during linear heating. Corrosion behaviors of different beryllide compositions were established, and temperature-dependent reaction rates determined. These findings enhance understanding of beryllide corrosion properties, providing a scientific basis for their potential in fusion and hydrogen technologies.

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不同成分铍化物高温腐蚀过程的对比分析

铍金属间化合物，如铍化钛（Be12Ti），铍化铬（Be12Cr）和铍化锆（Be2Zr），表现出特殊的物理化学性质，使它们成为各种科学和能源应用的有前途的材料。其中，由于高熔点、辐射诱导膨胀、低活化和优异的耐腐蚀性，Be12Ti是未来欧洲项目中使用氦冷却球床（HCPB）概念和ITER和demo型反应堆固体包层系统的中子倍增器的主要候选材料。为了扩大材料选择的范围，探索替代化合物变得非常重要。铍化铬Be12Cr具有与Be12Ti类似的性能，具有很高的耐热性和抗辐射性，但其在蒸汽-气体介质中的耐腐蚀性有待进一步研究。除了核聚变应用，铍化物在其他领域也有潜力。例如，Be2Zr表现出卓越的氢能特性，例如形成稳定的氢化物相，使其成为储氢系统的优秀候选国。这些研究与哈萨克斯坦推进氢和聚变能源技术特别相关。Ulba冶金厂JSC是铍材料生产的领导者，不仅可以合成Be12Ti， Be12Cr和Be2Zr，还可以合成较少研究的铍化物。本研究对不同成分铍化物的高温腐蚀进行了对比分析。采用非等温加热的方法，研究了不同同位素组成的蒸汽-气体介质在不同温度范围内的腐蚀机理。揭示了铍化物腐蚀的关键特征，包括线性加热过程中样品质量和气相组成的随时间变化。建立了不同铍化物组成的腐蚀行为，并确定了温度依赖性反应速率。这些发现增强了对铍化物腐蚀特性的理解，为铍化物在聚变和氢技术中的潜力提供了科学依据。

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来源期刊

Fusion Engineering and Design 工程技术-核科学技术

CiteScore

3.50

自引率

23.50%

发文量

275

审稿时长

3.8 months

期刊介绍： The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.