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The in-seivice wheel-set quality is one of critical challenges for railway safety, especially for the high-speed train and heavy haul train. The shelling in wheel tread, initiated by rolling contact fatigue (RCF) damage, is one of the most significant phenomena and has serious influence on rail industry. The Ultrasonic testing technique is successful NDT method for inner defects in wheel-set and difficult...
This paper reports on the use of eddy current pulsed thermography (ECPT) for detection and characterization of rolling contact fatigue (RCF). Detection mechanisms with eddy currents and heat propagation effects were discussed with RCF modeled as a simple angled defect. Two different angled defects were studied through numerical simulations and experimentally by using uniform magnetic field (UMF) excited...
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