Zitieren Sie bitte immer diesen URN: urn:nbn:de:kobv:b43-634138
Resistance of welded low-alloyed pressure vessel and pipeline steels in gaseous hydrogen
- Green hydrogen has become an essential energy carrier to achieve a climate-neutral economy. The production, storage, transport and usage of green hydrogen require safe and sustainable facilities and systems. The present contribution provides a procedure guideline to investigate the compatibility of steel welds for pressurised gaseous hydrogen applications under quasi-static mechanical loads, utilising the slow strain rate test and hollow specimen technique. Exemplarily, a weld of the low-alloyed steel P355NL1 was investigated and compared to an X65 weld. The results indicate that the base metal exhibits a higher ductility than the weld metal for both steels. Generally, hydrogen-exposed specimens exhibited a reduced strain, as compared to reference specimens. The hydrogen degradation, evaluated by the hydrogen embrittlement index, was more pronounced in the weld metal compared to the base P355NL1 material, whereas the X65 exhibited a larger hydrogen degradation of the base material thanGreen hydrogen has become an essential energy carrier to achieve a climate-neutral economy. The production, storage, transport and usage of green hydrogen require safe and sustainable facilities and systems. The present contribution provides a procedure guideline to investigate the compatibility of steel welds for pressurised gaseous hydrogen applications under quasi-static mechanical loads, utilising the slow strain rate test and hollow specimen technique. Exemplarily, a weld of the low-alloyed steel P355NL1 was investigated and compared to an X65 weld. The results indicate that the base metal exhibits a higher ductility than the weld metal for both steels. Generally, hydrogen-exposed specimens exhibited a reduced strain, as compared to reference specimens. The hydrogen degradation, evaluated by the hydrogen embrittlement index, was more pronounced in the weld metal compared to the base P355NL1 material, whereas the X65 exhibited a larger hydrogen degradation of the base material than in the weld metal. Fractographic analysis of the test specimens revealed that hydrogen causes a transition from ductile to brittle features. Generally, the results of this study indicate a mild but significant degradation of the mechanical properties in terms of the ductility of the welds in the respective pressurised hydrogen atmosphere.…


| Autor*innen: | Nikanor ShikombaORCiD, Thomas BöllinghausORCiD, Florian KonertORCiD, Oded SobolORCiD, Sergio Blasón GonzalezORCiD, Idehai Olayemi Ohijeagbon, Eike Krafft, Thorsten Staudt |
|---|---|
| Dokumenttyp: | Zeitschriftenartikel |
| Veröffentlichungsform: | Verlagsliteratur |
| Sprache: | Englisch |
| Titel des übergeordneten Werkes (Englisch): | Welding in the world |
| Jahr der Erstveröffentlichung: | 2025 |
| Organisationseinheit der BAM: | 9 Komponentensicherheit |
| 9 Komponentensicherheit / 9.0 Abteilungsleitung und andere | |
| 9 Komponentensicherheit / 9.1 Komponenten für Energieträger | |
| Veröffentlichende Institution: | Bundesanstalt für Materialforschung und -prüfung (BAM) |
| Verlag: | Springer |
| Verlagsort: | Berlin |
| Aufsatznummer: | 02074 |
| Erste Seite: | 1 |
| Letzte Seite: | 15 |
| DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik |
| Freie Schlagwörter: | Hollow Specimen; Hydrogen-assisted cracking; Slow strain rate test; Structural steel; Welded joint |
| Themenfelder/Aktivitätsfelder der BAM: | Energie |
| Energie / Wasserstoff | |
| DOI: | 10.1007/s40194-025-02074-7 |
| URN: | urn:nbn:de:kobv:b43-634138 |
| ISSN: | 0043-2288 |
| Zugehöriger Identifikator: | https://nbn-resolving.org/urn:nbn:de:kobv:b43-634647 |
| Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
| Lizenz (Deutsch): | Creative Commons - CC BY - Namensnennung 4.0 International |
| Datum der Freischaltung: | 17.06.2025 |
| Referierte Publikation: | Ja |
| Datum der Eintragung als referierte Publikation: | 17.06.2025 |
| Schriftenreihen ohne Nummerierung: | Wissenschaftliche Artikel der BAM |


