The influence of 1 and 5 wt% of TiC nanoparticles on the oxidation behaviour of reinforced tungsten has been evaluated up to 700 °C in dry air. Isothermal thermogravimetric tests prove that the addition of 5 wt% of TiC particles is detrimental, increasing the mass gain of pure tungsten by a factor of ten. TiC particles act as stress concentrators, facilitating microcracking events within the scale and promoting decohesion between TiC-free boundaries and TiC-containing regions of the material. Compared to pure tungsten, lowering TiC addition to 1 wt% significantly improves the oxidation resistance at 700 °C by reducing about seven times the mass gain, while at 600 °C both materials exhibit similar resistance. At 700 °C, the presence of 1 wt% of TiC particles inhibits massive microcracking events occurring in the scale formed on pure tungsten, rendering the oxide scale denser and more protective.

已经评估了在干燥空气中高达700°C的条件下，TiC纳米颗粒的1和5 wt％对增强钨的氧化行为的影响。等温热重测试证明，添加5 wt％的TiC颗粒是有害的，将纯钨的质量增益提高了十倍。TiC颗粒可作为应力集中器，促进氧化皮内的微裂纹事件，并促进无TiC边界与材料中含TiC的区域之间的脱粘。与纯钨相比，将TiC添加量降低到1 wt％可以通过减少约7倍的质量增加来显着提高700°C时的抗氧化性，而在600°C时，两种材料都表现出相似的抗性。在700°C下，存在1 wt％的TiC颗粒会抑制在纯钨上形成的氧化皮中发生的大量微裂纹事件，