Aging of Inconel X-750 spacer material

Inconel X-750 间隔材料的老化

• 批准号: 442006-2012
• 负责人: Yao, Zhongwen
• 金额: $ 1.71万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=534199
• 关键词: Aging; Inconel; 750; spacer; material

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.

该项目的目的是了解CANDU核电反应堆中关键机械部件之一的脆化行为：位于排管和压力管之间的间隔件。该项目旨在评估垫片材料的辐射诱导降解，并对工业相关镍基合金的辐射损伤进行基础科学理解。该项目的重点将是研究使用高能离子（作为快中子辐照的模拟物）结合氦效应的位移损伤效应。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。这里应用到离子辐照材料的技术和分析方法将有助于在粉笔河实验室（CRL）并行研究的中子辐照材料的测量的表征和解释。实验结果也将被用来验证分子动力学（MD）模拟模型，建立辐照诱导的纳米缺陷和其诱导的机械降解之间的内在关系。此外，由于这个项目，我们将为新一代核工程师提供高水平的HQP培训。