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Monitoring variation of surface residual stresses in the shot peened steel components by magnetic barkhausen noise method
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Date
2010
Author
Savaş, Serdar
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Shot peening is a cold-working process by which residual compressive stresses are being induced in the surface region to increase the fatigue strength and the resistance to stress-corrosion cracking. This study covers non-destructive measurement of surface residual stresses in the shot-peened steel components by a micro-magnetic technique, named as Magnetic Barkhausen Noise (MBN) method. For this purpose, various low alloy steel specimens were prepared by a controlled shot peening process with different intensity, impact angle and coverage values. The measurements showed that a clear relationship exists between residual stresses and the MBN signals. Residual stress values determined by MBN technique were also verified by X-ray diffraction measurements.
Subject Keywords
Metallurgical and materials engineering.
URI
http://etd.lib.metu.edu.tr/upload/12612183/index.pdf
https://hdl.handle.net/11511/19744
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Graduate School of Natural and Applied Sciences, Thesis
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Monitoring variation of surface residual stresses in shot peened steel components by the magnetic Barkhausen noise method
SAVAŞ, SERDAR; Gür, Cemil Hakan (2010-12-01)
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 coverag...
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S. Savaş, “Monitoring variation of surface residual stresses in the shot peened steel components by magnetic barkhausen noise method,” M.S. - Master of Science, Middle East Technical University, 2010.
