Refractory high entropy alloys are an interesting material class because of their high thermal stability, decent electrical conductivity, and promising mechanical properties at elevated temperature. In the present work, we report on the thermal stability of body-centered cubic MoNbTaVW solid solution thin films that were synthesized by cathodic arc deposition. After vacuum annealing up to 1600 °C, the morphology, chemical composition, crystal structure, and electrical conductivity, as well as the mechanical properties, were analyzed. The observed body-centered cubic MoNbTaVW solid solution phase is stable up to 1500 °C. The evolution of electrical and mechanical properties due to the annealing treatment is discussed based on the observed structural changes of the synthesized thin films.

中文翻译：

---

MoNbTaVW高熵合金薄膜的热稳定性

难熔的高熵合金是一种有趣的材料，因为它们具有很高的热稳定性，良好的导电性以及在高温下具有良好的机械性能。在目前的工作中，我们报告通过阴极电弧沉积合成的体心立方MoNbTaVW固溶体薄膜的热稳定性。在真空退火至1600°C后，分析了形貌，化学成分，晶体结构和电导率以及机械性能。观察到的以人体为中心的立方MoNbTaVW固溶体相在1500°C时都稳定。基于观察到的合成薄膜的结构变化，讨论了由于退火处理而引起的电气和机械性能的演变。