NSERC/NWMO/UNENE Industrial Research Chair in Radiation Induced Corrosion

NSERC/NWMO/UNENE 辐射诱发腐蚀工业研究主席

• 批准号: 326245-2014
• 负责人: Wren, Jungsook
• 金额: $ 10.93万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Industrial Research Chairs
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=696222
• 关键词: NSERC; NWMO; UNENE; Industrial; Research

Nuclear power provides a large fraction of the electricity needed to meet the energy requirements of Canada and many other industrialized countries. It is one of the few proven technologies that can supply large-scale base-load electricity without generating greenhouse gases. This is particularly important in the province of Ontario where nuclear power already supplies 50% of the electrical energy consumed. Sustained operation of nuclear power plants is expected to be a part of our future balanced energy supply strategy. Key requirements for public acceptance of nuclear power are the safe operation of reactors and the implementation of a safe system for the long-term storage of spent nuclear fuel. A challenge facing both of these needs is potential corrosion where ionizing radiation is present. This can affect the integrity and lifetimes of reactor structures and the spent fuel waste containers. The Chair program is aimed at developing the knowledge and tools to address these and other issues arising from radiation-induced corrosion. The Chair and her group have previously established a world-leading laboratory for radiation-assisted corrosion studies. In collaboration with materials research groups at Western, Canadian research laboratories, and other institutes around the world, sophisticated corrosion studies have been performed. This has led to fundamental understanding of: (1) steady-state water radiolysis chemistry, (2) radiation-induced uniform corrosion of reactor materials (carbon steel and stainless steel and cobalt alloys), and (3) the radiolytic formation of solid oxide nanoparticles following corrosion. In the 3rd term of the IRC program, the Chair's research will be extended to address radiolysis chemistry in humid air and confined volumes. It will focus on corrosion in locations such as weld cracks or crevices. These environments are particularly important in addressing Canadian industry needs.

核电提供了满足加拿大和许多其他工业化国家所需的电力所需的很大一部分。它是可以在不产生温室气体的情况下提供大规模的基本电力的少数经过验证的技术之一。这在安大略省的核电已经提供了消耗的电能的50％，这一点尤其重要。核电站的持续运行预计将成为我们未来平衡能源供应策略的一部分。 公众接受核电的关键要求是反应堆的安全运行和实施安全系统以长期存储用过的核燃料。这两个需求面临的挑战是存在电离辐射的潜在腐蚀。这可能会影响反应堆结构和用过的燃料垃圾容器的完整性和寿命。主席计划旨在开发有关辐射引起的腐蚀引起的这些问题和其他问题的知识和工具。 主席和她的小组以前已经建立了一个世界领先的辐射辅助腐蚀研究实验室。与西方，加拿大研究实验室和世界其他机构的材料研究小组合作，已经进行了复杂的腐蚀研究。这导致了对以下原因的基本理解：（1）稳态水辐射溶解化学，（2）辐射诱导的反应器材料（碳钢和不锈钢和钴合金）的均匀腐蚀，以及（3）腐蚀后固体氧化物纳米颗粒的放射性形成。在IRC计划的第3个期限中，主席的研究将进行扩展，以解决潮湿的空气和密闭体积中的放射分解化学。它将集中在焊缝或缝隙等位置的腐蚀上。这些环境在满足加拿大行业需求方面尤为重要。