Welding parameter study on the residual stress in a P91 bead-on-plate weld
The purpose of this proposal is to apply for beam time at ILL using the strain imager SALSA in order to measure the residual stress distribution in two bead-on-plate specimens of P91 martensitic steel. The results of the experiment will be used to validate the numerical studies for the prediction of the residual stress during the welding process and they will contribute to understanding of residual stress development in 9Cr martensitic steels. The lattice strain will be measured and the residual stress will be determined in the specimens at a number of key locations. The measurements will also be compared with the respective results of other neutron diffractometers and with finite element predictions.
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Spyridon A. Alexandratos; CABEZA Sandra; NIKBIN Kamran; OESTERLIN Heiner and PIRLING Thilo. (2019). Welding parameter study on the residual stress in a P91 bead-on-plate weld. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-164