TY - JOUR A1 - Dixneit, Jonny A1 - Vollert, F. A1 - Kromm, Arne A1 - Gibmeier, J. A1 - Hannemann, Andreas A1 - Fischer, Tobias A1 - Kannengießer, Thomas T1 - In situ analysis of the strain evolution during welding using low transformation temperature filler materials N2 - Compared to conventional welding consumables using low transformation temperature (LTT) filler materials is an innovative method to mitigate tensile residual stresses due to delayed martensite transformation of the weld. For the effective usage of LTT filler materials, a deeper understanding of the complex processes that lead to the final residual stress state during multipass welding is necessary. Transformation kinetics and the strain evolution of multi-pass welds during welding were investigated in situ at the beamline HEMS@PETRAIII, Germany. Compared to conventional welds, the total strain was reduced and compression strain was achieved when using LTT filler materials. For an optimal use of the LTT effect in the root of multi-pass welds, the alloying concept must be adapted taking care of dilution. KW - Low transformation temperature filler materials KW - Synchrotron diffraction KW - Phase transformation KW - Multi-pass welding KW - ADXRD PY - 2018 U6 - https://doi.org/10.1080/13621718.2018.1525150 SN - 1362-1718 SN - 1743-2936 VL - 24 IS - 3 SP - 243 EP - 255 PB - Taylor & Francis AN - OPUS4-46039 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -