63708 2025 eng lecture 0 -- -- -- The fatigue strength of weld seams was increased by using residual stress-reducing Low Transformation Temperature (LTT) filler metals. Conventional single-layer welded longitudinal stiffeners were welded at the end faces with an additional layer (LTT and conventional welding consumable). The weld geometry was varied by changing the welding parameters. The residual stress reduction determined using XRD depended significantly on the weld geometry. The increase in fatigue strength, on the other hand, was significantly improved in all LTT seam variants compared to conventional single-layer and double-layer layers. The 78th IIW annual assembly and international conference on welding and joining Genua, Italy 22.07.2025 27.07.2025 0 publish false true Martin Hübner eng uncontrolled Low transformation temperature (LTT) eng uncontrolled Residual stress reduction eng uncontrolled Fatigue strength eng uncontrolled Weld geometry Angewandte Physik 9 Komponentensicherheit 9.4 Integrität von Schweißverbindungen Energie Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation Windenergie