Electromagnetic non-destructive testing for inspecting the microstructure of high performance ferritic steels

用于检查高性能铁素体钢微观结构的电磁无损检测

• 批准号: 2325157
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2325157
• 关键词: Electromagnetic; non; destructive; testing; inspecting

Background:New techniques to measure the microstructure of a material in a non-contact non-destructive fashion can lead to a dramatic improvement in the understanding of the material and its behavior during processing and in-service, and an ability to control or predict the material properties. This project will consider advanced magnetic techniques for inspecting the microstructure of high value ferritic steels during manufacture and in service, focusing on applications of strategic importance to industry. The key aims are to establish robust relationships between microstructure and the magnetic properties and to devise sensors which exploit these relationships for use in the field.Outline Project Scope:The aim of this doctoral research is to develop new NDE techniques for the inspection and monitoring of microstructure on-line during pipe manufacture. Within this field, the project will target research in electromagnetic techniques, which is a specialism for both the University and industry partners.The specific objectives for the development of an NDE technique would be (deliverables in brackets): 1. Induction - become familiar with the current existing research and relevant tools.2. Conduct a literature search for any recent developments elsewhere. This will include one or more electromagnetic and ultrasonic methods for particular aspects of material characterisation (This will form part of the end of first year transfer report).3. Further formulation and refinement of theoretical approaches (for simplified cases) and, in the case of EM methods, full 3D FEM models for the forward problems using COMSOL and Ansys Maxwell focussing on a particular case study (Report with appended models).4. Production or acquisition of suitable reference materials and laboratory calibration samples of components with known characteristics or for instance known conductivity profiles. (Hardware / presentation).5. Design and construction of experimental sensors with appropriate signal conditioning and data acquisition electronics. (Demonstration to supervisors).6. Experimental results of the performance limits of the new sensors in laboratory conditions (Report / presentation).7. Validation of the sensor system response on the laboratory rigs against the predictions from the FEM and theoretical models of the forward problem. (Report and presentation).8. Development of the solution to the inverse problem by adapting techniques used in inverse problems or data analysis (Report with appended MatLab models).9. Error analysis of the complete inverse solution and validation against theoretical results and experimental data from the laboratory test rig (Report and presentation).10. If appropriate, assist in the design and construction of appropriate tools for deployment in an industrial environment, subject to progress (Hardware with CAD drawings). If appropriate, support deployment of the technique on site and analysis of the collected data. 11. Test programme of the complete system, evaluation of reports and recommendations for future deployment of the technology (Report and presentation).12. Production of PhD thesis (Thesis and Thesis defence)13. Provision of quarterly (or bi-yearly) progress reports to Tenaris and attending of quarterly (or bi-yearly) progress meetings.The plan is designed around the experience at the University and Tenaris on electromagnetic NDT techniques. In addition, the University of Manchester has experience of successfully applying methods of this type to several industrial applications and has developed a series of electromagnetic finite element method (FEM) models to quantify the response of various sensor designs. Consequently, we have increasing confidence in the potential of these approaches. However, if better alternative solutions are encountered, or current techniques prove to be infeasible in practice, then the project plan will be adapted to address these developments.

背景：以非接触式无损方式测量材料微观结构的新技术可以显着提高对材料及其在加工和使用过程中的行为的理解，以及控制或预测材料性能的能力。该项目将考虑采用先进的磁性技术来检查高价值铁素体钢在制造和使用过程中的微观结构，重点关注对工业具有战略意义的应用。主要目标是在微观结构和磁性之间建立牢固的关系，并设计利用这些关系在现场使用的传感器。项目范围概述：本博士研究的目的是开发新的无损检测技术，用于在管道制造过程中在线检查和监测微观结构。在该领域内，该项目将针对电磁技术的研究，这是大学和行业合作伙伴的专业领域。开发 NDE 技术的具体目标是（括号中的交付成果）： 1. 归纳 - 熟悉当前现有的研究和相关工具。2.对其他地方的最新进展进行文献检索。这将包括用于材料表征特定方面的一种或多种电磁和超声波方法（这将构成第一年结束转移报告的一部分）。3。进一步制定和完善理论方法（针对简化案例），对于 EM 方法，使用 COMSOL 和 Ansys Maxwell 重点关注特定案例研究的正向问题的完整 3D FEM 模型（带有附加模型的报告）。4。生产或获取具有已知特性或例如已知电导率分布的组件的合适参考材料和实验室校准样品。 （硬件/演示）.5。设计和构建具有适当信号调理和数据采集电子设备的实验传感器。 （向主管演示） 6．实验室条件下新型传感器性能极限的实验结果（报告/演示）.7。根据 FEM 和正演问题理论模型的预测，验证实验室设备上的传感器系统响应。 （报告和演示）.8．通过采用反演问题或数据分析中使用的技术来开发反演问题的解决方案（附有 MatLab 模型的报告）9。完整逆解的误差分析以及针对实验室测试装置的理论结果和实验数据的验证（报告和演示）。10．如果合适，协助设计和构建适当的工具以在工业环境中部署，视进展情况而定（带有 CAD 图纸的硬件）。如果合适，支持现场技术部署和收集数据的分析。 11. 整个系统的测试计划、报告评估和技术未来部署的建议（报告和演示）。12．博士论文的制作（论文和论文答辩）13。向泰纳瑞斯提供季度（或每两年）进度报告并参加每季度（或每两年）进度会议。该计划是围绕大学和泰纳瑞斯在电磁无损检测技术方面的经验而设计的。此外，曼彻斯特大学拥有将此类方法成功应用于多种工业应用的经验，并开发了一系列电磁有限元法 (FEM) 模型来量化各种传感器设计的响应。因此，我们对这些方法的潜力越来越有信心。然而，如果遇到更好的替代解决方案，或者当前的技术在实践中被证明不可行，那么项目计划将进行调整以解决这些发展问题。