TY  - CONF
A1  - Leo, Reinhold
T1  - Duplex stainless steels - Compatibility for high-pressure hydrogen applications
N2  - Duplex Stainless Steels (DSS) are an essential component used in the construction of transportation pipelines because of their many distinctive qualities. The choice of DSS for a particular hydrogen application mainly depends on its susceptibility level to Hydrogen Assisted Cracking (HAC). Several mechanisms have been proposed to describe the occurring microscale processes behind HAC, and these include metastable phase transformation, Hydrogen Enhanced Localized Plasticity (HELP), and Hydrogen Enhanced Decohesion (HEDE). This contribution describes the path to ascertain if DSS is suitable for high-pressure gaseous hydrogen applications. The interplay between several critical factors that result in HAC was examined using high-pressure gaseous hydrogen charging, Electron Backscatter Diffraction (EBSD), tensile testing and hydrogen concentration measurements using Carrier Gas Hot Extraction (CGHE).
T2  - Third German-African Green Hydrogen Forum 2025
CY  - Bernburg (Saale), Germany
DA  - 23.09.2025
KW  - Hydrogen Assisted Cracking
KW  - High Pressure Hydrogen
KW  - Duplex Stainless Steels
KW  - Hollow Specimen Technique
PY  - 2025
AN  - OPUS4-64302
LA  - eng
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -