核聚变堆面向等离子体含钨高熵合金材料研究现状与发展趋势

Research Status and the Development Trend of Plasma-facing Tungsten-containing High Entropy Alloy Materials for Nuclear Fusion Reactor

随着自然资源的日益匮乏,核聚变能被认为是解决未来能源问题的最有效途径之一。但在核聚变的实际应用过程中,面向等离子体材料(PFM)是严重制约其发展的一个关键要素。钨作为未来核聚变装置中最有前景的PFM候选材料,具有低温脆性、高韧脆转变温度和辐照脆化等性能方面的不足,极大地限制了其在聚变堆中的应用。为应对纯钨材料作为等离子体材料的不足,添加其他多种组元形成的含钨高熵合金成为聚变堆面向等离子体材料研究领域的热点。本文针对目前含钨高熵合金材料的研究进展进行了综述,并对未来含钨高熵合金材料在聚变领域的研究和发展方向进行了展望。

With the increasing shortage of natural resources,nuclear fusion energy is considered one of the most effective ways to solve future energy problems.However,in the practical application of nuclear fusion,plasma-facing material(PFM)is a key factor that seriously restricts its development.Tungsten is the most promising candidate material for PFM in the future nuclear fusion devices.It has the disadvantages such as low temperature brittleness,high ductile brittle transition temperature and irradiation embrittlement,which greatly limits its application in fusion reactors.In order to deal with the shortage of pure tungsten materials as plasma materials,tungsten-containing high entropy alloys formed by adding a variety of other components have become a hot research field of fusion reactor plasma materials.In this paper,the research progress of tungsten-containing high-entropy alloy materials is reviewed,and the future research and development direction of tungsten-containing high-entropy alloy materials in the field of fusion are prospected.