Aging of Inconel X-750 spacer material

该项目的目的是了解CANDU核动力反应堆中的关键机械部件之一的脆化行为：位于Calandria管和压力管之间的间隔器。该项目的目的是评估辐射引起的间隔材料的退化，以及发展对工业相关镍基合金的辐射损伤的基本科学理解。该项目的重点将是检查使用高能离子(作为快中子辐射的类似物)与氦的影响相结合的置换损害的影响。短期和长期结果直接适用于了解老化对CANDU间隔器完整性的影响。这里应用于离子辐照材料的技术和分析方法将有助于描述和解释白垩河实验室(CRL)正在平行研究的中子辐照材料的测量结果。实验结果还将用于验证分子动力学(MD)模拟模型，以建立辐照诱导的纳米缺陷与其诱导的机械降解之间的内在联系。此外，得益于这一项目，我们将为新一代核工程师提供高水平的HQP培训。

The purpose of this project is to develop an understanding of the embrittlement behaviour of one of the key mechanical components in a CANDU nuclear power reactor: the spacer, which is located between the calandria tube and the pressure tube. This project is aiming at evaluating radiation induced degradation of spacer material as well as developing a basic science understanding of irradiation damage in an industrially relevant Ni based alloy. The focus of this project will be to examine the effects of displacement damage using energetic ions (as an analogue to fast neutron irradiation), combined with the effect of helium. The short and long term results are directly applicable to understanding the effect of aging on the integrity of CANDU spacers. The techniques and analysis methods applied here to ion irradiated materials will help in the characterization and interpretation of measurements on neutron irradiated materials being studied at the Chalk River Laboratory (CRL) in parallel. The experimental results will also be used to validate molecular dynamic (MD) simulation models, to establish the intrinsic relationship between irradiation induced nano defects and its induced mechanical degradation. In addition, thanks to this project, we will provide a high level of HQP training for the new generation of nuclear engineers.