Constraint effects on creep crack growth behaviour in 316H stainless steel

316H不锈钢蠕变裂纹扩展行为的约束效应

• 批准号: 2434261
• 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-2434261
• 关键词: Constraint; effects; creep; crack; growth

Life extension of the UK's advanced gas cooled reactors (AGRs) is dependent on the assurance of the safety of their structural components. As many AGR components operate in the creep range, it is important to understand and to be able to predict creep and creep-fatigue crack growth for real or postulated defects in these components. The main aim of this work is to investigate the effects of constraint (in-plane and out-of-plane) on creep crack growth in 316H steel at 550 degrees C, with particular emphasis on developing an improved understanding of crack growth behaviour in thin section components.

英国先进气冷堆（AGR）的寿命延长取决于其结构部件安全的保证。由于许多AGR部件在蠕变范围内运行，因此了解并能够预测这些部件中真实的或假设缺陷的蠕变和蠕变疲劳裂纹扩展非常重要。这项工作的主要目的是研究约束（面内和面外）对316 H钢在550摄氏度下蠕变裂纹扩展的影响，特别强调提高对薄壁构件中裂纹扩展行为的认识。