Ultrasonic nondestructive evaluation of welds in clad piping systems

复合管道系统焊缝的超声波无损评估

• 批准号: 516463-2017
• 负责人: Sinclair, Anthony
• 金额: $ 0.92万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=665266
• 关键词: Ultrasonic; nondestructive; evaluation; welds; clad

Many industrial piping systems, such as those used for off-shore oil & gas recovery, are vulnerable to attack via**from the corrosive fluids inside the pipe. Therefore, the pipes may have a protective inner layer or cladding**made from a non-isotropic material such as stainless steel or Inconel. To avoid the costly and environmentally**devastating effects of a pipe failure the weld seam linking two adjacent pipe sections together is ultrasonically**inspected after construction. In this project, we attempt to develop more accurate techniques for conducting**these inspections using two-dimensional ultrasonic arrays. By combining together the signals received at all the**array elements after reflection from weld defects, one can focus on the areas of interest and thereby get more**accurate information. However, such techniques are time consuming and require great amounts of computer**data storage and processing power. We will be developing inspection methods and signal processing**techniques to make the process more efficient while maintaining high accuracy.

许多工业管道系统，例如用于海上石油和天然气开采的管道系统，容易受到管道内腐蚀性流体的攻击。因此，管道可能具有由非各向同性材料（如不锈钢或铬镍铁合金）制成的保护内层或包层 **。为了避免管道故障造成的成本高昂和环境破坏性影响，连接两个相邻管道段的焊缝在施工后进行超声波检查。在这个项目中，我们试图开发更精确的技术进行 ** 这些检查使用二维超声阵列。通过将从焊接缺陷反射后在所有阵列元件处接收到的信号组合在一起，可以聚焦于感兴趣的区域，从而获得更精确的信息。然而，这样的技术是耗时的，并且需要大量的计算机数据存储和处理能力。我们将开发检测方法和信号处理 ** 技术，以使该过程更高效，同时保持高准确性。