| Issue |
E3S Web Conf.
Volume 602, 2025
International Conference on Materials and Energy (ICOME2024)
|
|
|---|---|---|
| Article Number | 01009 | |
| Number of page(s) | 5 | |
| Section | Mechanics | |
| DOI | https://doi.org/10.1051/e3sconf/202560201009 | |
| Published online | 14 January 2025 | |
Detection of Rail Defects Using Phased Array Ultrasonic Technique
1 Department of Mining and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
2 Center of Excellence in Metal and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
3 Department of Industrial Engineering, Rajamangala University of Technology Srivijaya, Muang, Songkhla 90000, Thailand
* Corresponding author : manwika.k@psu.ac.th
The Phased Array Ultrasonic Technique (PAUT) is an advanced non-destructive inspection method that utilizes an array of ultrasonic testing (UT) probes consisting of several small elements. The laboratory used an artificial crack on the rail steel grade 900A/ R260 test block to study the principles of PAUT and how to measure the defect’s reliability and accuracy. On-site studies were done on railroad tracks with different structures. Rail steel grade 900A/ R260, Hadfield steel, and thermite welded joints. No defects were found during the inspection at the crossing nose of the two positions. Only a darker shade of color in the area has an impact load from the wheel applied when a train changes to another direction. Inspection was also performed for the Thermit welded rail joint with two position defects. The inspection results found defects such as porosity, with an echo (A%) value exceeding 80%, but it does not require rejection according to the BART standard.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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