Application of phased array ultrasonic test equipment to the qualification of railway components

Phased array ultrasonic testing is becoming common in a wide range of industries. For some time it has been used for the qualification at manufacture of components such as wheels; now the advent of robust portable equipment has made its use in all areas of the maintenance workshop and in the field possible. Items such as wheels, and draft gear components, have successfully been tested in situ. Many of the benefits of the new equipment are derived from the computing and data recording capabilities of the equipment as much as from the advances in ultrasonics. Electronic scanning, distance encoding, recording of all A scans and post-test processing of data are all features that can be used to increase the probability of detection for a given test situation. Test data can be displayed in a number of formats including A scan, Sectorial scan, B scan, and C scan. The two dimensional nature of the Sectorial scan can make defect discrimination much easier leading to very low rates of false positives when compared to traditional A scan flaw detection. The analysis of a combination of 3 of the views can give a detailed 3 dimensional analysis of discontinuity locations. This is advantageous for failure analysis or understanding of manufacturing processes. Phased array ultrasonic testing is a useful tool that can provide information not usually available from conventional ultrasonic testing. The results presented in this paper demonstrate the successful application of phased array testing to wheels and draft gear components while in situ.

Media Info

  • Pagination: pp. 557-564
  • Monograph Title: Rail: the core of integrated transport: CORE 2008: conference on railway engineering, 7-10 September 2008, Perth, Western Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01517645
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Mar 10 2014 11:55AM