Micromagnetic Method Based On Barkhausen Effect For Describing Heat-Treated Steel

NDTnet - December 1998, Vol.3 No.12

4th International Conference of Slovenian Society for NDT
Table of Contents

Micromagnetic Method Based On Barkhausen Effect For Describing Heat-Treated Steel

J. Grum*, P. Zerovnik**, D. Fefer*
* Faculty of Mechanical Engineering. University of Ljubljana, Askerceva 6, 1000 Ljubljana. Slovenia; ** Faculty of Electrical Engineering, University of Ljubljana, Trzaska 25, 1000 Ljubljana, Slovenia

Abstract

The paper presents a measuring system for detecting the magnetic Barkhausen noise signal for which research has shown that it is a carrier of information on the properties and changes in ferromagnetic materials. These properties and changes refer to hardness, microstructure, heat treatment, chemical composition and also residual stresses. The reported research investigation is restricted to observations of the relationship between the suitably analysed frequencies of Barkhausen noise signals and different heat treatment procedures or hardness of carbon steel CS 45.

Keywords: Magnetic Testing

Source: Conference Proceedings of the 4th International Conference of the Slovenian Society for Nondestructive Testing, 24 - 25 April 1997, Ljubljana, Slovenia.
Pages:239 - 246

Publisher:
Slovenian Society for Nondestructive Testing, Faculty of Mechanical Engineering, Askerceva 6, SLO 1000 Ljubljana, Slovenia. Tel +386 61 177 12 03, Fax +386 61 218 567, Email: janez.grum@fs.uni-lj.si.

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