戴学峰,林晓冬,张杰,姚美意,胡丽娟,谢耀平

• 1:上海大学材料研究所

摘要(Abstract)：

2011年日本福岛核事故后,国内外研究者迫切希望开发出能够代替传统Zr合金的包壳材料,以提升核反应堆的事故容错能力。Fe-Cr-Al合金因具有良好的加工性能、较好的抗辐照性能、优良的抗高温氧化性能和耐常规腐蚀性能等优点,成为事故容错燃料(ATF)包壳的候选材料之一。然而,现有的Fe-Cr-Al合金仍难以满足核反应堆包壳材料的性能要求,其中Fe-Cr-Al合金的α-α′相分离始终是制约其发展的关键因素。本文综述了近年来国内外有关Fe-Cr-Al合金在热时效或辐照条件下发生α-α′相分离的研究现状,分析了引起α-α′相分离的主要原因,提出了目前α-α′相分离研究存在的问题以及未来主要的研究方向。

关键词(KeyWords)： 事故容错燃料;Fe-Cr-Al合金;相分离;热时效;辐照

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51871141)

作者(Author): 戴学峰,林晓冬,张杰,姚美意,胡丽娟,谢耀平

DOI: 10.13289/j.issn.1009-6264.2021-0032

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