Sizing and tomography of rolling contact fatigue cracks in rails using NDT technology - Potential for high speed application

Rolling contact fatigue (RCF) cracks in the rail head progressively grow due to in-service loading. Early detection and sizing of RCF cracks allows more efficient mediation treatment such as grinding. In this paper the capability of an Alternating Current Field Measurement (ACFM) technique to detect and size light to moderate...