Measuring With Eddy Current: Gage Corner Cracking and the Magic Wear Rate
By Ryan McWilliams and Eric Eberius Gage corner cracking (GCC) of the rail from rolling contact fatigue (RCF) is a dangerous and costly form of rail damage. Unfortunately, it’s also notoriously difficult to measure. And as GCC becomes more prevalent on rail systems around the world, accurate measurement is an …