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Determining Residual Stresses in Ferromagnetic Materials by Barkhausen Noise Measurement

Silvério F. Silva Jr, , Tanius R. Mansur
Brazilian Nuclear Energy Commission
Email: silvasf@urano.cdtn.br, tanius@urano.cdtn.br
Ernani S. Palma
Pontifical Catholic University of Minas Gerais
E-mail: palma@pucminas.br
Contact

ABSTRACT

1. INTRODUCTION

2. EXPERIMENTAL METHODOLOGY

3. CALIBRATION

4. RESIDUAL STRESSES MEASUREMENTS

5. DISCUSSION OF THE RESULTS

6. CONCLUSIONS

7. REFERENCES

  1. Dhar, A., Jagadish C., Atherton, D. L., "Using the Barkhausen Effect to determine the Easy Axis of Magnetization in Steels", Materials Evaluation, October 1992, pp1139-1141.
  2. CULLITY, B.D. Introduction to Magnetic Materials, Londres: Addison-Wesley Publishing Company, 1972. 666p.
  3. SIPAHI, L. B. Overview of Applications of Micromagnetic Barkhausen Emissions as Noninvasive Material Characterization Technique. Journal of Applied Physics, v.75, n.10, p.6978-6980, Maio 1994.
  4. KAMEDA, J., RANJAN, R. Nondestructive Evaluation of Steels Using Acoustic and Magnetic Barkhausen Signals - I. Effect of Carbide Precipitation and Hardness. Acta Metallurgica, v.35, n.7, p.1515-1526, 1987.
  5. PASLEY, R. L. Barkhausen Effect - An Indication of Stress. Materials Evaluation, p.157-161, Julho 1970.
  6. AMERICAN SOCIETY FOR TESTING AND MATERIALS, ASTM E 837 - 95; Standard Test Method for Determining Residual Stresses by the Hole-Drilling Strain-Gage Method. 1996. 7p.
  7. Silva Jr., S. F.,Determining Residual Stresses in Ferromagnetic Materials by Barkhausen Effect, MSc Dissertation, UFMG, Belo Horizonte, Brazil, 1998.

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