Determination of residual stress state in steel weldments

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2009
Yelbay, Hasan İlker
The purpose of this study is to estimate the residual stress state in steel weldments by using Magnetic Barkhausen Noise (MBN) technique. For obtaining accurate, fast and continuous residual stress measurements a set up for single pass welded plates was designed and used. In order to convert the MBN values to residual stress values a calibration set up was also designed and a procedure for obtaining calibration curves was developed. After welding of low-C steel plates, residual stresses on heat affected zone (HAZ) and parent metal were measured by MBN technique. The results were verified by the hole drilling method. Microstructural investigation and hardness measurements were also conducted.

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Citation Formats
H. İ. Yelbay, “Determination of residual stress state in steel weldments,” M.S. - Master of Science, Middle East Technical University, 2009.