Acta Scientiarum Naturalium Universitatis Pekinensis

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Transient Thermal Response of Pure and Oxide Dispersion Strengthened Tungsten Alloys

HE Shukai, YAN Sha, ZHU Yizhou, ZHANG Boyao, XUE Jianming, WANG Yugang   

  1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871;
  • Received:2012-05-03 Online:2013-05-20 Published:2013-05-20



  1. 北京大学物理学院, 核科学与核技术国家重点实验室, 北京 100871;

Abstract: Thermal response of pure and two kinds of oxide dispersion strengthened tungsten alloys were investigated using intense pulsed ion beam (IPIB) device. Scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX) were used to examine the surface modifications and the distributions of dispersion elements. By comparing the results, it is found that pure tungsten show a better resistance to thermal shock. From the perspective of the tolerance of heat load, WL10 and WYT are not recommended for PFMs.

Key words: tungsten, IPIB, transient thermal load, fusion

摘要: 用强脉冲离子束(IPIB)实验装置, 研究了纯钨以及两种氧化物弥散强化的钨合金WL10和WYT对脉冲热负载的响应。通过扫描电子显微镜(SEM)和X射线能量色散谱(EDX)观测了IPIB辐照带来的表面形貌和成分分布的变化及其与辐照脉冲次数的关系。通过比较发现, 在ELM瞬态热冲击下纯钨表现的性能最好。从热负荷的耐受性角度看, 不推荐WL10和WYT作为面向等离子体材料。

关键词: 钨, 强流脉冲离子束, 瞬态热负荷, 聚变

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