Visualization of the Rolling Contact Fatigue Cracks in Rail Tracks with a Magnetooptical Sensor

• Published in: Journal of nondestructive evaluation Vol. 38; no. 3; pp. 1 - 8
• Main Authors: Chotzoglou, A., Pissas, M., Zervaki, A. D., Haidemenopoulos, G. N., Pissas, T.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2019; Springer Nature B.V
• Subjects: Algorithms; Carbon steels; Cementite; Characterization and Evaluation of Materials; Classical Mechanics; Computer vision; Control; Crack propagation; Cracks; Dynamical Systems; Engineering; Fatigue cracks; Fatigue failure; Ferromagnetic materials; Flaw detection; Magnetic fields; Magnetic permeability; Magnetism; Microstructure; Pearlite; Polarized light; Rolling contact; Sensors; Solid Mechanics; Structural steels; Vibration; Computer vision; Rolling contact fatigue; Rail head check; Rail tracks; Magnetooptic sensor

The rolling contact fatigue cracks (RCF), produced at the surface of the rail tracks, can be detected using a magnetooptical (MO) sensor. Rail tracks are carbon steels with pearlite microstructure. This microstructure has a lamellar texture composed of alternating layers of ferrite and cementite. Bo...