Monitoring variation of surface residual stresses in shot peened steel components by the magnetic Barkhausen noise method


SAVAŞ S., GÜR C. H.

INSIGHT, vol.52, no.12, pp.672-677, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 12
  • Publication Date: 2010
  • Doi Number: 10.1784/insi.2010.52.12.672
  • Title of Journal : INSIGHT
  • Page Numbers: pp.672-677

Abstract

Shot peening is a cold working process by which residual compressive stresses are induced in the surface and near-surface region to increase the fatigue strength and the resistance to stress corrosion cracking This study covers non-destructive evaluation of surface residual stresses in the shot peened steel components by the magnetic Barkhausen noise method For this purpose various sets of steel specimens were prepared by a controlled shot peening process with different intensities impact angles and coverage values The measurements showed that a clear relationship exists between surface residual stresses and the Barkhausen noise signals