面向等离子体钨基材料热负荷损伤研究进展

Research progress on thermal load damage behavior of tungsten-based plasma facing materials

在核聚变反应堆运行过程中,面向等离子体钨基材料需要承受住一定次数稳态和瞬态热负荷的冲击而不发生开裂、熔化等损伤,因此改善面向等离子体钨基材料的力学性能及高温稳定性是极其重要的,主要手段包括合金强化、弥散强化、纤维增韧、第二相强化、复合强化等。本文分析了合金强化、弥散强化等改性手段对钨基材料热负荷损伤行为的影响,总结了各种强化手段的优势和不足,并对面向等离子体掺杂钨基材料热负荷损伤行为进行了展望。

During the operation of nuclear fusion reactors,the plasma facing tungsten-based materials need to withstand a certain number of steady-state and transient thermal loads without cracking,melting,and other damage.It is very important to improve the mechanical properties and high temperature stability of plasma facing tungsten-based materials,the current modification methods mainly include alloy strengthening,dispersion strengthening,fiber toughening,second phase strengthening,composite strengthening,and so on.The effect of modification methods on the thermal load damage behavior of tungsten-based materials was investigated in this paper,such as alloy strengthening and dispersion strengthening,the advantages and disadvantages of those strengthening methods were summarized,and the thermal load damage behavior of plasma facing tungsten-based materials was prospected.