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Non-destructive determination of residual stress state in steel weldments by Magnetic Barkhausen Noise technique
Date
2010-01-01
Author
Yelbay, Hasan İlker
Çam, İbrahim
Gür, Cemil Hakan
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The purpose of this study is non-destructive determination of residual stresses in the welded steel plates by Magnetic Barkhausen Noise (MBN) technique. A MBN-stress calibration set-up and a residual stress measurement system with scanning ability were developed. To control the accuracy and the effectiveness of the developed system and procedure, various MBN measurements were carried out. The MBN results were verified by the hole-drilling method. Microstructural investigation and hardness measurements were also conducted. It was concluded that if the calibration procedure including the effect of microstructure is appropriate then MBN is a very promising method for non-destructive, fast and accurate prediction of residual stresses in the welded plates.
Subject Keywords
Welding
,
Residual stress
,
Non-destructive evaluation
,
Magnetic barkhausen noise
URI
https://hdl.handle.net/11511/46205
Journal
NDT & E INTERNATIONAL
DOI
https://doi.org/10.1016/j.ndteint.2009.08.003
Collections
Welding Technology and Nondestructive Testing Research and Application Center (KTTMM), Article
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Variations of surface residual stresses as a function of weld runs in API 5L X70 steel plates were non-destructively monitored by Magnetic Barkhausen Noise (MBN) method. After each weld run, MBN signal and hardness distributions were recorded. MBN signals were converted into stress values by using a specific calibration procedure. The results were analyzed by considering microstructure investigations and hardness measurements, and then, they were compared with the results of X-ray diffraction measurements. ...
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H. İ. Yelbay, İ. Çam, and C. H. Gür, “Non-destructive determination of residual stress state in steel weldments by Magnetic Barkhausen Noise technique,”
NDT & E INTERNATIONAL
, pp. 29–33, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46205.