Dual-tube X-ray system with in situ load unit

带原位负载单元的双管 X 射线系统

• 批准号: 459685720
• 金额: --
• 依托单位: Technische Universität Dortmund
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/459685720?language=en
• 关键词: Dual; tube; ray; system; situ

With the dual-tube X-ray system with in situ load unit, the possibilities of non-destructive, 3D visualization and analysis of inner structures of metallic, polymeric, and hybrid material systems, even in a loaded state, in the TU Dortmund University are significantly extended. For a successful implementation of in-situ computed tomography in ongoing and planned research projects the enhancement of X-ray tube power for successful radiography of high-density materials by achieving spatial resolutions in micrometer range is given the highest priority. Further, by enhancing spatial resolution into the nanometer range, fundamental scientific findings are expected for non-destructive observation of finest microstructural characteristics, e.g. in the field of biomaterials. Computed tomography as a non-destructive imaging process is specifically suitable to perform threshold defect analyses on 3D volumes, with the aim to derive process-structure-property-relationships based on defect form factors. Using the in situ load unit, these relationships can also be assessed for application-oriented loading conditions. The achieved results make an important contribution for model-based simulation and prediction of material behavior. The system configuration enables interdisciplinary application of in-situ computed tomography on various, even high-density materials, like steel- and nickel-based alloys or tool steel, for the first time. Further, the influence of production processes on the microstructure of components manufactured can be investigated for further development of machining technologies, which also supports cooperation projects between the applicants to a large extent. The dual-tube X-ray system with in-situ load unit will be used in ongoing and planned research projects as well as in experimental student works and experimental laboratories to visualize and characterize the microstructures of various material systems under application-oriented loading conditions. The focus lies on the basic understanding of process-structure-property-relationships, which enable a model-based simulation and prediction of material behavior and a property-enhanced manufacturing of components, respectively.

多特蒙德大学的双管x射线系统具有原位载荷单元，即使在载荷状态下，也可以对金属、聚合物和杂化材料系统的内部结构进行非破坏性的3D可视化和分析。为了在正在进行和计划中的研究项目中成功实施原位计算机断层扫描，通过实现微米范围内的空间分辨率来增强x射线管功率以成功地对高密度材料进行射线成像是重中之重。此外，通过将空间分辨率提高到纳米范围，有望在无损观察最精细的微观结构特征（例如生物材料领域）方面取得基础科学发现。计算机断层扫描作为一种非破坏性成像过程特别适用于对3D体积进行阈值缺陷分析，其目的是基于缺陷形状因素推导工艺-结构-属性-关系。使用原位加载单元，这些关系也可以评估面向应用的加载条件。所得结果为基于模型的材料性能模拟和预测做出了重要贡献。该系统首次实现了原位计算机断层扫描在各种高密度材料（如钢和镍基合金或工具钢）上的跨学科应用。此外，还可以研究生产工艺对制造零件微观结构的影响，从而进一步开发加工技术，这也在很大程度上支持了申请人之间的合作项目。具有原位载荷单元的双管x射线系统将用于正在进行和计划中的研究项目，以及实验性学生作品和实验实验室，以可视化和表征各种材料系统在面向应用的载荷条件下的微观结构。重点在于对工艺-结构-性能-关系的基本理解，这分别使基于模型的材料行为模拟和预测以及部件的性能增强制造成为可能。