Detecting defective rail welds

RADIOGRAPHIC non-destructive testing of aluminothermic welds is being carried out by AMEC under a £1m contract from Railtrack. Ultrasonic methods are unsuitable for analysing welds because of the heterogeneity of the metal, but radiography takes less than 30min to check a weld.

Premium content, please sign in to view.

Sub Advert

Not yet a Premium subscriber?

Upgrade today to benefit from:

  • Knowledge hub access:
  • Profiles of main line and urban rail operators
  • Country and city map directory
  • Network and traffic data
  • VIP passes to Railway Gazette virtual events
  • Exclusive features and analysis
  • Print and digital editions of Railway Gazette International and Metro Report International magazines
  • Unlimited access to online news
  • Weekly curated subscriber newsletter
  • Access to digital magazine archive

Get premium content now Upgrade