| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5490707 | Journal of Magnetism and Magnetic Materials | 2017 | 8 Pages |
Abstract
The residual stress distribution of tungsten inert gas welded S235JRC+C plates was determined by means of neutron diffraction (ND). Large longitudinal residual stresses with maxima around 600 MPa were found. With these results as reference, the evaluation of residual stress with high spatial resolution GMR (giant magneto resistance) sensors was discussed. The experiments performed indicate a correlation between changes in residual stresses (ND) and the normal component of local residual magnetic stray fields (GMR). Spatial variations in the magnetic field strength perpendicular to the welds are in the order of the magnetic field of the earth.
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Authors
Robert Stegemann, Sandra Cabeza, Viktor Lyamkin, Giovanni Bruno, Andreas Pittner, Robert Wimpory, Mirko Boin, Marc Kreutzbruck,