Crack characterization in manganese steel using a μ-bolometer camera and an air-cooled inductor
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204. Paper presented at SPIE Defense + Commercial Sensing 2024, National Harbor, Maryland, United States.
Research output: Contribution to conference › Paper › peer-review
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T1 - Crack characterization in manganese steel using a μ-bolometer camera and an air-cooled inductor
AU - Tuschl, Christoph
AU - Oswald-Tranta, Beata
AU - Dornig, Peter
AU - Künstner, David
AU - Pötz, Melanie
AU - Eck, Sven
N1 - Conference code: 13047
PY - 204/6/7
Y1 - 204/6/7
N2 - Due to beneficial mechanical properties, cast manganese (Mn13) steel is used for premium grade railway turnout frogs worldwide. However, its coarse-grain structure makes common non-destructive testing (NDT) methods for defect detection used in this industry very difficult to apply. Inductive thermography is a NDT method well suited for this problem.Scanning inductive thermography is used to localise surface defects on the running surfaces of turnout frogs. Once localised, we propose additional static measurements to characterise the detected surface defects with respect to crack length, depth and penetration angle. Simulations with ANSYS Multiphysics are conducted to study the influence of different crack geometries as well as the influence of different excitation parameters. Validation measurements on samples with defined crack geometries are conducted. The results of both, simulation and measurements on samples, are used to characterize surface defects on actual manganese turnout frogs.
AB - Due to beneficial mechanical properties, cast manganese (Mn13) steel is used for premium grade railway turnout frogs worldwide. However, its coarse-grain structure makes common non-destructive testing (NDT) methods for defect detection used in this industry very difficult to apply. Inductive thermography is a NDT method well suited for this problem.Scanning inductive thermography is used to localise surface defects on the running surfaces of turnout frogs. Once localised, we propose additional static measurements to characterise the detected surface defects with respect to crack length, depth and penetration angle. Simulations with ANSYS Multiphysics are conducted to study the influence of different crack geometries as well as the influence of different excitation parameters. Validation measurements on samples with defined crack geometries are conducted. The results of both, simulation and measurements on samples, are used to characterize surface defects on actual manganese turnout frogs.
KW - inductive thermography
KW - crack detection
KW - crack characterization
KW - scanning inspection
KW - manganese stee
KW - railway inspection
U2 - 10.1117/12.3013393
DO - 10.1117/12.3013393
M3 - Paper
T2 - SPIE Defense + Commercial Sensing 2024
Y2 - 22 April 2024 through 25 April 2024
ER -
