Developing methodologies for correlative microstructural characterisation of materials degradation

开发材料降解相关微观结构表征的方法

• 批准号: 2615284
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2615284
• 关键词: Developing; methodologies; correlative; microstructural; characterisation

This studentship, co-funded with EDF Energy Nuclear Generation Ltd, will focus on the development of new methodologies to correlate the microstructural features of materials degradation with the engineering stress, strain and environmental conditions that caused them. The long-term ambition of the project is to develop a methodology applicable broadly for characterising microscopy of materials degradation including creep, fatigue and stress corrosion cracking. It is important to understand how the location of damage in ex-service and test specimens correlates with both the microstructure of the material and the operational conditions. Emphasis will be placed on developing image processing techniques using machine learning tools to combine multiple large-scale mapping techniques, correlate degradation with the underlying microstructure and stresses, and compare to engineering model predictions. It will also investigate optimal ways to storing data from materials analysis for future use, including metadata and data hierarchy. The ultimate goal will be to design a methodology to best obtain, store and analyse microscopy data in a way that can be replicated and used by future researchers through digital repositories.The project is based in the Interface Analysis Centre within the School of Physics at the University of Bristol and will be closely connected with the School of Mechanical Engineering and EDF Energy Nuclear Generation Ltd at Barnwood, Gloucestershire. The student will have access to a wide range of state-of-the-art surface and materials analysis instrumentation providing the opportunity to develop skills in advanced materials characterisation techniques including electron backscatter diffraction (EBSD) and focused ion beam cross-sectioning, as well as leading materials modelling methods and image analysis tools. This project falls within the EPSRC Research themes of Materials, Nuclear and Fusion.

该奖学金与EDF Energy Nuclear Generation Ltd共同资助，将专注于开发新方法，将材料降解的微观结构特征与引起材料降解的工程应力，应变和环境条件相关联。该项目的长期目标是开发一种方法，广泛适用于表征材料退化的显微镜，包括蠕变，疲劳和应力腐蚀开裂。重要的是要了解退役和测试样本中的损坏位置如何与材料的微观结构和操作条件相关。重点将放在使用机器学习工具开发图像处理技术，以联合收割机结合多种大规模映射技术，将退化与底层微观结构和应力相关联，并与工程模型预测进行比较。它还将研究存储材料分析数据以供将来使用的最佳方法，包括元数据和数据层次结构。最终目标将是设计一种方法，以最好地获得，存储和分析显微镜数据的方式，可以复制和使用的未来研究人员通过数字repositions.The项目是基于在物理学院在布里斯托大学的界面分析中心，并将密切联系与机械工程学院和EDF能源核能发电有限公司在巴恩伍德，格洛斯特郡。学生将有机会获得广泛的国家的最先进的表面和材料分析仪器，提供机会发展先进的材料表征技术，包括电子背散射衍射（EBSD）和聚焦离子束横截面，以及领先的材料建模方法和图像分析工具的技能。该项目属于EPSRC材料、核与聚变研究主题的福尔斯范围。