Improving ultrasonic inspection of rail welds

Colombier, Tamara; Rudlin, John
January 2011
Railway Gazette International;Jan2011, Vol. 167 Issue 1, p48
Trade Publication
The article offers information on the RAILECT project which aims to develop a novel clamp-on ultrasonic testing device for the volumetric examination of aluminothermic rail welds. The device will ultrasonically inspect the weld and classify it based on predetermined quality criteria. Its prototype uses phased array rather than conventional ultrasonic probes and is able to detect the most common and damaging volumetric flaws likely to cause failure including porosity and shrinkage cracks in the lower part of the web.


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