Metals (Oct 2022)

Characterization of the Fatigue Behaviour of Low Carbon Steels by Means of Temperature and Micromagnetic Measurements

  • Haoran Wu,
  • Srinivasa Raghavan Raghuraman,
  • Jonas Anton Ziman,
  • Fabian Weber,
  • Torsten Hielscher,
  • Peter Starke

DOI
https://doi.org/10.3390/met12111838
Journal volume & issue
Vol. 12, no. 11
p. 1838

Abstract

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Investigations on low carbon (non- and low-alloy) steels were conducted in form of load increase tests (LIT) and constant amplitude tests (CAT) to find the correlation among material behaviour, mechanical load, and the type of NDT method. With the help of preprogrammed load-free sequences, the thermal impact on magnetic Barkhausen noise (MBN) measurement can be avoided, so that the cyclic deformation properties of material responses can be interpreted more precisely. The results indicate differences between the change in temperature and the MBN-derived variable during LITs and CATs regarding the demonstration of the incubation stage and the cyclic hardening behaviour.

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