TY  - CONF
A1  - Fey, Gero
T1  - Ermittlung wasserstoffabhängiger, mechanischer Eigenschaften der Schweißnahtgefüge niedriglegierter Stähle für Ferngasleitungen
N2  - This study investigates the suitability of low-alloy pipeline steels for hydrogen transportation, focusing on the development of weld microstructures. Previous research has been limited by a deficiency in the understanding of how different microstructural components respond to trapped hydrogen. By developing Continuous Cooling Transformation (CCT) diagrams through dilatometry analysis, this study explores the impact of t8/5-cooling times (the time between 800 °C and 500 °C) on the microstructure and mechanical properties of the HAZ compared to the base material. The findings provide valuable insights into how cooling times influence transformation temperatures and microstructure development, which, in turn, affect hydrogen diffusion and absorption. These findings establish a foundation for future investigations into hydrogen's impact on weld microstructures, including experimental studies, with the aim of optimizing welding practices and enhancing resistance to hydrogen-assisted cracking. Ultimately, this research contributes to improving the safety and reliability of hydrogen transportation systems in commonly used industrial pipeline steels.
T2  - DVM-Workshop "Werkstoffe für die Wasserstoffinfrastruktur – von der Werkstoffentwicklung bis zum Einsatz im Bauteil"
CY  - Berlin, Germany
DA  - 21.05.2025
KW  - Pipelinestahl
KW  - Dilatometrie
KW  - ZTU
KW  - WEZ
PY  - 2025
AN  - OPUS4-63750
LA  - deu
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -