Development of TFGR (Toughened, Fine Grained, Recrystallized) tungsten-based material for fusion divertor applications

国内外对TFGR（韧化、细晶、再结晶）钨基材料进行了研究合作，以考察其在偏滤器材料上的适用性。结果表明，W-1.1%TiC和W-3.3%TaC两种TFGR合金在韧脆转变温度、热冲击和热疲劳响应、高能粒子辐照和氢同位素等离子体辐照耐受性等方面表现出较好的性能。建立了一种更省时、更经济的制造方法。

Domestic and international research collaboration has been made on TFGR (Toughened, Fine Grained, Recrystallized) tungsten-based materials in order to examine their applicability to divertor material. It is found that TFGR W-1.1%TiC and W-3.3%TaC exhibit more satisfactory performances from the viewpoints of various thermo-mechanical properties including the ductile-brittle transition temperature, response to thermal shock and thermal fatigue loading, and irradiation tolerance behavior against energetic particle irradiations and hydrogen isotope plasmaexposure. A more time saving and economical fabrication method has been established.