论文标题
组合发现辐照损伤耐受纳米结构的合金
Combinatorial Discovery of Irradiation Damage Tolerant Nano-structured W-based alloys
论文作者
论文摘要
融合反应器的挑战之一是发现面向能够承受极端条件的材料，例如辐射损伤和高热量通量。融合材料的开发可能是一项艰巨的任务，因为需要探索微观结构和组成的大量组合，每种都需要基于反复试验的辐照实验和材料表征。在这里，我们利用组合实验，允许对纳米结构的钨合金的组成微结构的快速和系统特征进行快速和系统的特征。合成了W-RE-TA合金的组合材料库，然后进行了高通量实验，以探测合金的机械，热和结构特性的辐射损害。这种高效的技术允许快速识别具有出色损伤耐受性的成分范围。我们发现，植入的He簇的分布可以通过添加TA和RE来显着改变，TA和RE在确定辐射时的性质变化中起着至关重要的作用。
One of the challenges in fusion reactors is the discovery of plasma facing materials capable of withstanding extreme conditions, such as radiation damage and high heat flux. Development of fusion materials can be a daunting task since vast combinations of microstructures and compositions need to be explored, each of which requires trial-and-error based irradiation experiments and materials characterizations. Here, we utilize combinatorial experiments that allow rapid and systematic characterizations of composition-microstructure dependent irradiation damage behaviors of nanostructured tungsten alloys. The combinatorial materials library of W-Re-Ta alloys was synthesized, followed by the high-throughput experiments for probing irradiation damages to the mechanical, thermal, and structural properties of the alloys. This highly efficient technique allows rapid identification of composition ranges with excellent damage tolerance. We find that the distribution of implanted He clusters can be significantly altered by the addition of Ta and Re, which play a critical role in determining property changes upon irradiation.
