Ultrasonic guided wave nondestructive testing systems for corrosion detection

用于腐蚀检测的超声波导波无损检测系统

• 批准号: 549523-2019
• 负责人: Filleter, TobinWTW
• 金额: $ 1.46万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=759566
• 关键词: Ultrasonic; guided; wave; nondestructive; testing

Corrosion is a significant issue in pipelines and aboveground storage tanks used in a wide range of Canadian industry settings requiring heating/cooling and the transportation/storage of petrochemical products. This project is centered on the development of state-of-the-art guided wave ultrasound nondestructive testing (NDT) systems for detection of corrosion in pipes and above ground storage tank floors. Such systems will provide early warning of a lack of integrity in pipes and tank floors and prevent extensive delays in industrial processes.The ultrasonic guided wave (NDT) methods developed in the project will use electromagnetic acoustic transducers (EMAT) to generate shear horizontal waves within steel pipes and plates. The methods are envisioned to be rapid and low cost screening techniques which complement more traditional NDT approaches such as through thickness ultrasonic testing. The project will focus on coupled numerical/experimental studies of factors that affect wave generation and propagation within test specimens containing corrosion type defects. This will include identifying the underlying contributions from both Lorentz force and magnetostrictive transduction mechanisms. The understanding developed through these studies will be applied within the project to design EMAT based NDT system prototypes with high reproducibility and low signal-to-noise. A successful conclusion to the project will enable our industry partner, Labratoire d'essai Mequaltech Inc., to translate the findings into fully operational EMAT based ultrasonic guided wave NDT instruments and compete more successfully in the international market for non-destructive testing contracts. Additional benefits include the training of engineering students on the use of technical NDT equipment and software packages.

腐蚀是加拿大各种需要加热/冷却和运输/储存石化产品的工业环境中使用的管道和地上储罐的一个重要问题。该项目的重点是开发最先进的导波超声无损检测（NDT）系统，用于检测管道和地上储罐地板的腐蚀。此类系统将对管道和储罐底板缺乏完整性提供早期预警，并防止工业过程中的广泛延误。该项目开发的超声波导波（NDT）方法将使用电磁声换能器（EMAT）在内部产生剪切水平波。钢管和板材。这些方法预计将成为快速、低成本的筛查技术，补充更传统的无损检测方法，例如厚度超声检测。该项目将重点关注影响含有腐蚀类型缺陷的测试样本中波的产生和传播的因素的耦合数值/实验研究。这将包括确定洛伦兹力和磁致伸缩转导机制的潜在贡献。通过这些研究形成的理解将应用于项目中，设计具有高再现性和低信噪比的基于 EMAT 的 NDT 系统原型。 该项目的成功完成将使我们的行业合作伙伴 Labratoire d'essai Mequaltech Inc. 能够将研究结果转化为完全可操作的基于 EMAT 的超声导波 NDT 仪器，并在国际无损检测合同市场上更成功地竞争。其他好处包括对工程专业学生进行无损检测技术设备和软件包使用方面的培训。