Temperature dependence of Barkhausen noise parameters in carbon steel

L. Harasztosi, L. Daróczi, I. A. Szabó, Z. Balogh, D. L. Beke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Temperature dependence of different parameters (the position of the inflexion point and the saturation value on the root main square, RMS, values versus exciting field curves) of the Barkhausen noise is measured in structural steel (S 235 JRGI). It is shown that while the position of the inflexion point remained constant, the RMS value at the inflexion point and saturation value increased with the increasing temperature, T. Most interestingly the field required for saturation decreased with decreasing temperature and had a breakpoint at about 200K. Breakpoints at the same temperature on the critical exponents versus temperature functions (i.e. on the β(T) and α(T) curves, where β and α are the exponents of the probability distributions of peak heights and durations, respectively) were also observed. This temperature can be identified as the ductile-brittle transition temperature.

Original languageEnglish
Title of host publicationMaterials Science, Testing and Informatics III - Proceedings of the 5th Hungarian Conference on Materials Science, Testing and Informatics
Pages371-380
Number of pages10
Publication statusPublished - Dec 1 2007
Event5th Hungarian Conference on Materials Science, Testing and lnformatics - Balatonfured, Hungary
Duration: Oct 9 2005Oct 11 2005

Publication series

NameMaterials Science Forum
Volume537-538
ISSN (Print)0255-5476

Other

Other5th Hungarian Conference on Materials Science, Testing and lnformatics
CountryHungary
CityBalatonfured
Period10/9/0510/11/05

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Keywords

  • Ductile-brittle transition
  • Magnetic Barkhausen noise
  • Self-organized criticality
  • Temperature dependence

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Harasztosi, L., Daróczi, L., Szabó, I. A., Balogh, Z., & Beke, D. L. (2007). Temperature dependence of Barkhausen noise parameters in carbon steel. In Materials Science, Testing and Informatics III - Proceedings of the 5th Hungarian Conference on Materials Science, Testing and Informatics (pp. 371-380). (Materials Science Forum; Vol. 537-538).