论文标题
高渗透晶界
High-Entropy Grain Boundaries
论文作者
论文摘要
高渗透合金和陶瓷是否具有晶界（GB）对应物？由于最初提出了高渗透晶界（HEGB）的概念，因此本文提供了对基本界面热力学的首次完整而严格的讨论。简化的隔离模型可以说明GB和大量的高渗透效应，从而降低GB能量随饱和多组分（常规和高渗透）合金的温度升高。 HEGB可以通过热力学和动力学作用在高温下在高温下稳定纳米晶合金。 GB结构混乱和过渡提供了进一步的机会，以获得更高有效的GB熵。讨论了未来的观点。
Do high-entropy alloys and ceramics have their grain boundary (GB) counterparts? As the concept of high-entropy grain boundaries (HEGBs) was initially proposed in 2016, this article provides the first complete and rigorous discussion of the underlying interfacial thermodynamics. A simplified segregation model can illustrate both GB and bulk high-entropy effects, which reduce GB energy with increasing temperature for saturated multicomponent (conventional and high-entropy) alloys. HEGBs can be utilized to stabilize nanocrystalline alloys at high temperatures via thermodynamic and kinetic effects. GB structural disordering and transitions offer further opportunities to attain higher effective GB entropies. Future perspective is discussed.
