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Use of Barkhausen effect in Measurement of Residual Stresses in Steel after Heat Treatment and Grinding

J. Grum, P. Zerovnik
Faculty of Mechanical Engineering, Aškerceva 6, 1000 Ljubljana, Slovenia
D. Fefer
Faculty of Electrical Engineering, Trzaška 25, 1000 Ljubljana, Slovenia
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Abstract.

1. INTRODUCTION

2.0 EXPERIMENTAL PROCEDURE

3.0 DETERMINATION OF RESIDUAL STRESSES ON THE BASIS OF THE BN VOLTAGE SIGNAL

4.0 COMPARISON OF RESIDUAL STRESSES DETERMINED WITH THE MICROMAGNETIC AND RELAXATION METHODS

5.0 CONCLUSIONS

6.0 REFERENCES

  1. Tiitto K.: Use of Barkhausen Effect in Testing for Residual Stresses and Material Defects, NDT International, Vol.26, No.1, Southport (Australia), October 1988, 36-41.
  2. Suominen L., Tiitto K.: Use of X-ray Diffraction and Barkhausen Noise for the Evaluation of Stresses in Shot Peening, Proc. Of 4 th Intrn. Conf. On Residual Stresses, June 8-10, 1994, Baltimore, USA, 443-448.
  3. Langman R.: Measurement of Stress by a Magnetic Method, 4 th Europe NDT Conf., London 1987, 1783-1799.
  4. Jiles D. C., Suominen L.: Effects of Surface Stress on Barkhausen Effect Emissions- Model Predictions and Comparison with X-ray Diffraction Studies, Presented in Intermag Conf., June, Albuquerque, 20-23.
  5. Vohringer O.: Changes in the State of Material by Shot Peening, Ed. Wohlfart R., Kopp R., Vohringer O.: DGM Informationsgesellshaft, Oberusel 1987, 185-204.
  6. Rohlfing H., Schmid H., Templ A.: Tabellenbuch fur Elektrotecnik, Ummler - Bonn, 1976, 289-290.
  7. Bozorth R. M.: Ferromagnetizeing, IEEE Magnetic Science, SBM 0/7803 - 1032/2, New York, 1993, 524-533.

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