Atom probe tomography and microscale mechanical testing of neutron irradiated Sizewell B reactor pressure vessel steel

中子辐照 Sizewell B 反应堆压力容器钢的原子探针断层扫描和微观机械测试

• 批准号: 2462093
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2462093
• 关键词: Atom; probe; tomography; microscale; mechanical

This project aim is to understand the combined effects of strain ageing and irradiation on RPV steel. This topic is understudied in the literature, both in terms of looking at surveillance samples and in terms of using advanced techniques such as APT. By using APT we can see the composition variations at the atomic scale allowing us to measure the concentrations of solute elements at dislocations and clusters. This data has the potential to further extend the life expectancy of RPV steels and therefore PWR reactors.

本项目的目的是了解应变时效和辐照对RPV钢的综合影响。这一主题在文献中研究不足，无论是在监测样本方面，还是在使用先进技术，如APT方面。通过使用APT，我们可以看到在原子尺度上的成分变化，使我们能够测量位错和簇中溶质元素的浓度。这些数据有可能进一步延长RPV钢的预期寿命，从而延长PWR反应堆的预期寿命。