论文标题
在辐照金属和合金中定量推断纳米级缺陷
Towards quantitative inference of nanoscale defects in irradiated metals and alloys
论文作者
论文摘要
量化在金属和暴露于极端辐射环境的金属和合金中形成的纳米级缺陷的种群仍然是材料科学的紧迫挑战。这些缺陷从根本上改变了材料特性和种子长时间的性能降低，这通常会限制工程系统的寿命。与陶瓷和半导体材料不同，金属和合金中的这些缺陷不是光谱活动的，迫使表征依赖于可以从中可以推断出纳米级缺陷的间接测量值。在这个迷你审查中，强调已用于捕获当前技术状态的不同实验方法。提出了该领域的未来方向，通过将来自多个和互补表征方法的数据流与多尺度建模和仿真结合在一起，将实现量化辐照金属和合金中的全部缺陷频谱的最终目标。
Quantifying the population of nanoscale defects that are formed in metals and alloys exposed to extreme radiation environments remains a pressing challenge in materials science. These defects both fundamentally alter material properties and seed long-timescale performance degradation, which often limits the lifespan of engineering systems. Unlike ceramic and semiconducting materials, these defects in metals and alloys are not spectroscopically active, forcing characterization to rely on indirect measurements from which the distribution of nanoscale defects may be inferred. In this mini-review, different experimental methodologies which have been employed for defect inference are highlighted to capture the current state of the art. Future directions in this area are proposed, which, by combining data streams from multiple and complementary characterization methods in concert with multi-scale modeling and simulation, will enable the ultimate goal of quantifying the full spectrum of defects in irradiated metals and alloys.
